Isosceles and Equilateral Triangles

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length and all three angles measure 60 degrees.

Front

What does 'acute triangle' mean?

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is always 180 degrees.

Front

How do you classify a triangle with one angle greater than 90 degrees?

Back

A triangle with one angle greater than 90 degrees is classified as an obtuse triangle.

Front

What are the properties of angles in an equilateral triangle?

Back

In an equilateral triangle, all angles are equal and each measures 60 degrees.

Front

If two angles of a triangle are 60 degrees each, what is the measure of the third angle?

Back

The third angle measures 60 degrees, making it an equilateral triangle.

Front

What is the relationship between the sides and angles in an isosceles triangle?

Back

In an isosceles triangle, the angles opposite the equal sides are also equal.

Front

What is the measure of each angle in an equiangular triangle?

Back

In an equiangular triangle, each angle measures 60 degrees.

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

It is a right triangle.