# Can you name the 3-dimensional shape with 20 congruent triangles as faces?

# What is a congruent triangle?

A congruent triangle is one where all the angles are identical tothose of another triangle, or equivalently, all three sides are thesame ratio to the sides of another triangle.

# What shape has 3 pairs of congruent rectangles?

A cube has 3 pairs of congruent rectangle because it is made up ofsix squares ( squares are special types of rectangles, where allsides are equal ). However, not every rectangle is a square.

# What size and shape do two congruent triangles have?

to be congruent two triangles have,.
ASA-two angles the same with a side length between them..
SAS-two side lengths the same and a same angle between them..
SSS-all 3 side lengths the same..
RHS-if the triangles are right angles ,and the hypotenuse are the same..
)

# What is a 3-dimensional geometric shape that has a total of 5 faces with 2 faces being triangles and the other 3 faces being rectangles?

That shape is called a triangular prism. A prism is made of rectangles arranged in a tube with any 2D shape at the ends. This shape determines what kind of prism it is, you can get pentagonal, hexagonal, and many other types of prism.

# What is the name of an 8 faced shape?

an eight sideded polygon is an octagon octa means 8 * * * * * Yes, that is an eight sided shape but the question asked what an 8 FACED shape was. The answer to the question that was asked is an octahedron.

# What is a shape that has triangle faces?

It is a hexahedron. There are several types of hexahedron, one of which is the cube. One having 6 triangular faces is a triangular dipyramid.

# Name of a 20 faced shape?

yeah umm its called an iscohedron! i reckon its quite hard to spell! i luv cows so much cya later good luck with stuff! from somebody i cant say just to be sure.
mwahahaha

# What are congruent triangles?

The definition of congruent is in agreement or harmony. In the caseof figures, triangles in particular are congruent if they haveidentical corresponding angles and sides.

# Is there a name for a 3 dimensional shape with 4 equilateral triangles?

Yes: it's called a tetrahedron. If you're an algebraic topologist, you can also call it a 3-simplex.

# What is a 3 dimensional shape with 12 faces called?

hello this is me i am 11 years old but i still don't know what a 3D shape with 12 faces is called

# What 3-dimensional shape has 4 corners and 4 faces?

A triangular pyramid. This is one where all the faces are triangles - a three-sided base, from which three triangular faces rise to a single point - the apex.

# What shape has 4 triangle faces?

The tetrahedron. If one of the four triangles is equilateral and all others are isosceles, then one might also call it a (triangular-based) pyramid.

# What is the name of the geometric solid with four faces that are congruent triangles?

Isosceles Tetrahedron A solid with four faces is a tetrahedron. Each of the faces is atriangle. If all the triangles are congruent, you have an isoscelestetrahedron.

# What is the name of the shape that has four faces?

A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.

# Are the triangle congruent?

"Are" does not make sense. well you know what he/she means- is the triangle congruent? * * * * * "Are", "Is" makes no difference. There is no information about the triangles and therefore no way to determine whether or not they ARE congruent.

# What is the shape with each face as an equilateral triangle?

A four sided figure would be a tetrahedron and a 20 sided would be an icosahedron. They both have equilateral triangles for faces so your question is a little incomplete.

# What is the name of a 17 faced shape?

any polygon over 12 faces is called #gon . like 13 faces would be 13-gon . so the answer would be that it's called a 17gon.

# What is a triangle has 3 congruent sides and 3 congruent sides?

What is a triangle with three congruent sides? This is a closed figure that you can ask your teacher about and so go ahead unless you are really really shy.

# What shape has 3 sides but is not a triangle?

There is no shape that is made up 3 sides that is not a triangle. Any shape that is made up of 3 sides is classified as a triangle no matter what shape or size it is.

# What are the names of 3 dimensional shapes?

Square Pyramid , Cube , Triangular Prism , Sphere , Cylinder , Rectangular Pyramid , Rectangular Prism , Cone .

# Which shape has 12 edges and each face ia a triangle?

The term dodecahedron is 2+10 or 12 sided figure. An octahedron has 12 edges and 8 faces.

# A shape with 3 congruent side?

Hmm... I'm thinking an equilateral triangle because an equilateral triangle has 3 congruent sides and are all the same length.

# What shape has 6 faces and 12 edges but not all congruent?

A parellelepiped (pronounced parellel pie ped) is any shape with 6 faces and 12 edges. A cuboid, also called a rectangular parallelepiped, is a parallelepiped of which all faces are rectangular. A cube is a cuboid with square faces. A rhombohedron is a parallelepiped with all rhombic faces. … A trigonal trapezohedron is a rhombohedron with congruent rhombic faces. http://commons.wikimedia.org/wiki/File:Parallelepipede.png (MORE)

# What is the name of a triangle with atleast two sides congruent?

An Isosceles triangle has 2 equal sides. Scalene triangles have no congruent sides, and equilateral triangles have every side congruent.

# What kind of triangle has 3 congruent angles?

An equilateral triangle- a triangle with 3 equal sides, so the triangle would have 3 congruent angles as well. A trick to remember this: the word equal is sort of in the word equil ateral.

# What is the name of a 3 faced 3-d shape that is not a cilynder?

A lune or biangle. For example, a segment of an orange, which has two plane surfaces and one curved one.

# 3-dimensional shape with seven faces?

A seven faced body would be called a "heptahedron" There are no regular heptahedra (with all the faces the same shape and size). If you cut off the corner of a cube you will get a seven faced, 3 dimensional body.

# What shape has 5 faces made up of triangles and rectangles?

The shape is a triangular prism. This is a 3-dimensional polygon with two ends that are triangles and three rectangular sides connecting them. * * * * * FYI, a 3-dimensional polygon is known as a polyhedron .

# What dimensional shapes have circular faces?

Not sure what the question means, unless it is meant to refer to 3-dimensional shapes. If so, some answers are: a cylinder, a cone, a section of a sphere, an ellipsoid with two equal axes intersected by a plane defined by those axes, a symmetric paraboloid intersected by a plane perpendicular to i…ts axis of symmetry, a torus (doughnut) intersected by a plane perpendicular to its "main" radius. (MORE)

# Does triangles have 3 faces?

A true triangle is a two dimensional object, so it has NO faces at all (or maybe one). Triangles have 3 sides, but not 3 faces.

# What is the rule stating that if 3 sides of a triangle or congruent to another triangle they are congruent?

Rules for congruency of triangles 1. Sss- three sides are equal 2. Sas- when two sides and one angle are equal 3. Aas- two angles and one side are equal. Rules for similarity of triangles 1.aa - two anles equal hence third also 2. Sss - ratio of corresponding sides is equal.

# What shape is made out of two congruent triangles?

If you have 2 EQUILATERAL triangles, and you stack them on their respective hypotenuses, the result: SQUARE. If you have 2 ISOSCELES triangles, and you stack them on their respective hypotenuses, the result: RECTANGLE. If you have 2 OBTUSE triangles, and you stack them on their respective hypo…tenuses, the result: PARALLELOGRAM. (MORE)

# What solid with two parallel bases that are congruent triangles has later faces that are parallelograms?

It is a prism. More specifically, "A solid figure that has two bases that are parallel, congruent polygons and with all other faces that are parallelograms." This describes the general prism. Replace "polygons" with "triangles" and you have specified a triangular prism.

# What is a 3 dimensional figure that has three pairs of opposite parallel congruent faces that are rectangles?

This depends on if the question is asking for each pair of opposite rectangles must be congruent, then it is a rectangular prism . If all of the rectangles are congruent, then it must be a Cube. A square is a special case of a rectangle, and all 6 sides being squares makes a cube and they are al…l congruent. (MORE)

# Which 3-D shape has 11 faces 20 edges and 13 vertices?

None. Euler's characteristic requires that V - E + F = 2 where V = number of vertices, E = number of edges and F = number of faces. That equation is not satisfied by the numbers given in the question.

# Which 3 dimensional figure has faces that are always congruent and the same shape?

There are a few families of polyhedra with identical faces. There are none whose faces have 6 or more sides. There is no special name for polyhedra whose faces are pentagons or pentagrams. A dodecahedron is an example. If coplanar faces are disallowed, the only polyhedron with quadrilateral faces …are the cube and rhombohedron. There are infinitely many polyhedra with equilateral triangular faces: the tetrahedron, octahedron and icosahedron are examples. (MORE)

# What shape has five faces that are triangles and rectangle?

a triangular pyramid... i think * * * * * You think wrong! It is a rectangular pyramid.

# What triangle is congruent?

A single triangle would not be described as congruent, you have to have at least two triangles in order for congruency to be possible. Congruent triangles are the same. Their sides are all the same length, and their angles are all the same number of degrees. They are mathematically identical. That's… what the term congruent means. (MORE)

# What is the name of a 26 faced shape?

That would be the rhombicuboctahedron. See links. Why don't I use the word 'rhombicuboctahedron' in the link names? Because there is a 15 letter limit to words in link names!

# What shape has 4 faces and 5 vertices that are triangle?

There is no such shape. There is no such shape. There is no such shape. There is no such shape.

# Do congruent triangles always have the same shape?

Yes, that's part of what the word congruent means. Not only do congruent triangles have the same shape they are of the same size, and you can move one of them over the other one so that it covers it exactly. Note that you cannot flip a triangle over and consider it conguent to another triangle.

# What are the shape of the faces of a rectangular triangle?

It's very difficult to determine an answer, since there is no such thing as a rectangular triangle.

# Is it true that two triangles have 3 pairs of congruent angles then the triangle are not guaranteed to be congruent?

When two triangles are congruent, there are 6 facts that are true about the triangles. The triangles have 3 sets of congruent (of equal length) sides and the triangles have 3 sets of congruent (of equal measure) angles.

# What is the name of a triangle have at least 2 sides congruent?

An isosceles triangle has 2 equal sides whereas an equilateral triangle has 3 equal sides

# What is the name of faces from a 3d shape?

A rather simplistic answer is: A cube or cuboid shape has (usually)2 sides, 2 ends, 1 top and 1 bottom.

# What is the name of the shape that has 6 faces?

It is a cube or a cuboid which also has 12 edges and 8 vertices

# What has 8 congruent equilateral triangles as faces and 6 vertices?

A solid with 8 faces is an octahedron. As all faces are the same it is a regular octahedron. As such it is one of the five platonic solids - the only five 3Dobjects that can be regular: the tetrahedron (4 equilateraltriangles for the faces), the hexahedron (usually called a cube with 6 square… faces), the octahedron (as asked,8 equilateral triangles for the faces), dodecahedron (12regular pentagons as faces), icosahedron (20 equilateraltriangles as faces). (MORE)

# If two triangles are congruent which of the triangles are congruent?

If they both have 3 sides the same and 3 angles the same then they are said to be congruent.

# What shape am i i have 4 congruent triangles as my faces?

You are a triangular based pyramid (tetahedron) with 4 faces, 6 edges and 4 vertices.

# What shape has 4 faces which are congrugent triangles?

A four faced figure is a tetrahedron. If they are all congruent triangles, they are all equilateraltriangles and it is a regular tetrahedron - one of the 5 PlatonicSolids.