Triangles Review

Front

What is an acute triangle?

Back

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

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle where one angle is greater than 90 degrees.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are equal in length and all three angles are equal to 60 degrees.

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 a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths.

Front

How many degrees are in a triangle?

Back

A triangle has a total of 180 degrees.

Front

If one angle of a triangle is 90 degrees and another is 40 degrees, what is the measure of the third angle?

Back

The third angle measures 50 degrees.

Front

What is the sum of the angles in a triangle?

Back

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

Front

If a triangle has angles measuring 60 degrees and 80 degrees, what is the measure of the third angle?

Back

The third angle measures 40 degrees.