The instrument used to construct (or draw) circles is called a pair of compasses, although it is often known either as compasses or simply as a compass.

A pair of compasses usually consists of a joined pair of "legs", one of which has a sharp point, and the other of which holds a pencil. The sharp point is pushed lightly into the paper and acts as a pivot, while the other leg can be swung around it to draw an arc, or a complete circle.

An equilateral triangle is a triangle where all of the sides are of equal length. An isosceles triangle is a triangle that has only two sides that are of equal length.

A perimeter is measured in LINEAR units. Neither 'square' units nor 'cube' units.

The Circumference of a Circle when the diameter is a known, fixed number is Pi or about 3.14 multiplied by the Diameter 3.14 x D

none really i mean there is only 1 and it is a trapezoid. That's the only one.

You could add an isosceles triangle.

Any polygon where the side to the left of the bottom is the same as the side to the right of the bottom, and the next pair of sides are the same as one another (but different from the first pair), and so on. The angles would have to be selected so that the left half of the shape is the mirror image of the right half. So that is an infinite number added to the "only one".

A truncated parabola.

An ellipse.

and there are loads more.

first we find the circumference which is 2 pi r.then we divide it with half because we want half of circumference,my ans is 72 cm. peri meter is circumference divided by 2 then add diameter in ans

The total surface area is about 754 ft2

the thing is that it helps you read or do something in the corect way it helps you

Perpendicular line.

The largest rectangle would be a square. If the circle has radius a, the diameter is 2a. This diameter would also be the diameter of a square of side length b. Using the Pythagorean theorem, b2 + b2 = (2a)2.

2b2 = 4a2

b2 = 2a2

b = √(2a2) or a√2 = the length of the sides of the square

The area of a square of side length b is therefore (√(2a2))2 = 2a2 which is the largest area for a rectangle inscribed in a circle of radius a.

A polygon is a closed plane figure made up of several line segments that are joined together. The first 10 are: the triangle, the quadrilateral, pentagon, hexagon, heptagon, octagon, nonagon, decagon, hendecagon, and the dodecagon.

The measure of an exterior angle of an equiangular pentagon is 72 degrees. An equiangular pentagon is a regular pentagon that has five equal sides and five equal angles. An interior angle of a pentagon is equal to 108 degrees.

The area of a triangle = base/2 x height

In the lower-case "y", there are none. In the upper-case "Y", there is one.

In a parallelogram:
the opposite sides are parallel and congruent,
the opposite angles are congruent,
the consecutive angles are supplementary,
the diagonals bisect each other, and
a diagonal divides it into two congruent triangles.


to be simple both sides are congruent and both sides are parallel

All prisms have a face on each end. Additionally, they will have a number of faces corresponding to the number of sides on the polygon that is on an end. For a triangular prism, that's 2 + 3 = 5 faces. For a square prism, that's 2 + 4 = 6 faces. For your pentagon prism, that's 2 + 5 = 7 faces.

6 sided polygon is called a hexagon

A regular hendecagon is one possible answer.

A regular hendecagon is one possible answer.

A regular hendecagon is one possible answer.

A regular hendecagon is one possible answer.

There is no quadrilateralthat has 1 line of symmetry as quadrilaterals have to have at least 1 line of symmetry.

A rectangular prism is solid 3-dimensional object which has six faces that are rectangles. It has 12 edges and 8 vertices.