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only a scalene triangle cannot be used for a pyramid.
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When can the leg of an isosceles triangle be used as the height of the triangle?
Yes if the isosceles triangle is a right isosceles triangle because that leg opposite the hypotenuse is the height
What word means the same as apex?
Depending on how you use it, another word for it could be vertex, like in an isosceles triangle, or peak, if used in a pyramid.
Can a isosceles triangle have three lines of symmetry?
It depends on the definition used. If you are defining an isosceles triangle as having exactly two sides of equal length, then no. If you define it as having at least two, then yes. An equilateral triangle has three lines of symmetry, but whether or not that counts as an isosceles triangle depends on the definition used. So, maybe.
What is the correct name for triangle below?
There are four different types of triangles. They include the isosceles triangle, equilateral triangle, scalene triangle and obtuse triangle. Triangles are used in geometry.
When can one of the two congruent sides of an isosceles triangle can be used as the height of the triangle?
When it's a right triangle and it's sitting on one of the congruent sides.
What is the food pyramid used for?
The food pyramid is used to show the serving sizes in a healthy diet.
How can triangles be classified by their sides?
There are three ways to classify a triangle by its sides:A scalene triangle is a triangle where no two sides are of the same length. That is, all three sides are different lengthsAn isosceles triangle is a triangle where at least two sides have equal length. (Note: In some textbooks, they define an isosceles as having exactly two sides with equal length).An equilateral triangle has all three sides with equal lengths. By the first definition for isosceles, this means that an equilateral triangle would also be isosceles. It all depends on the book being used.
How can triangles be classified by sides?
There are three ways to classify a triangle by its sides:A scalene triangle is a triangle where no two sides are of the same length. That is, all three sides are different lengthsAn isosceles triangle is a triangle where at least two sides have equal length. (Note: In some textbooks, they define an isosceles as having exactly two sides with equal length).An equilateral triangle has all three sides with equal lengths. By the first definition for isosceles, this means that an equilateral triangle would also be isosceles. It all depends on the book being used.
What does isosceles mean in math?
This term is usually used with triangles, and in this case, it means that at least 2 sides are equal in length.Note that this could be 2 sides or 3 sides (called an equilateral triangle, and is still an isosceles triangle).
What is a defintion of an isosceles triangle?
Literally speaking, an isosceles triangle is one which has two sides of equal length. Generally speaking, the third side should be of a different length. [If the third side is also the same length then the triangle would be equilateral, but that may be considered a special case of an isosceles triangel.] Equality of two sides implies that the two angles at the ends of the third side are of equal measure. This may be used as a working definition of an isosceles triangle.
How do you determine that an isosceles triangle is an isosceles right triangle?
If the non-right angles are 45 degrees each. or If the sides adjacent to the right angle are equal. There are other properties that may be used instead. For example, the perpendicualr bisector of the hypotenuse bisects the right angle of the triangle.
When can one of the two congruent sides of an isosceles triangle be used as the height of the triangle?
When it has a 90 degree angle and 2 equal angles of 45 degrees
