Classifying Triangles

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles equal to 60 degrees.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length and at least two angles of equal measure.

Front

What is a right triangle?

Back

A triangle that has one angle measuring 90 degrees.

Front

What is an obtuse triangle?

Back

A triangle that has one angle measuring more than 90 degrees.

Front

What does it mean for a triangle to be equiangular?

Back

A triangle where all three angles are equal.

Front

How can you identify a scalene triangle?

Back

By checking that all three sides are of different lengths.

Front

What is the sum of the angles in any triangle?

Back

180 degrees.

Front

What is the relationship between the sides and angles in a triangle?

Back

In a triangle, the larger the angle, the longer the opposite side.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.