Triangle Review

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90 degrees.

Front

What is an equilateral triangle?

Back

A triangle where all three sides are equal in length and all angles are equal to 60 degrees.

Front

What is an isosceles triangle?

Back

A triangle that has at least two sides of equal length.

Front

What is a scalene triangle?

Back

A triangle where all three sides are of different lengths.

Front

What is an equiangular triangle?

Back

A triangle where all three angles are equal.

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is the relationship between the exterior angle and the remote interior angles of a triangle?

Back

The exterior angle is equal to the sum of the two remote interior angles.

Front

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

Back

It is a right triangle.