Angles and Triangles Review

Front

What is the total number of degrees in any triangle?

Back

180 degrees

Front

What is the range of possible lengths for the third side of a triangle with sides of lengths 7 ft and 13 ft?

Back

More than 6 but less than 20

Front

If two angles of a triangle are 64° and 36°, what is the measure of the third angle?

Back

80°

Front

Can a triangle be formed with side lengths of 3 cm, 5 cm, and 9 cm?

Back

No triangle exists

Front

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

Back

180 degrees

Front

What is the definition of an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is the definition of a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is the definition of an obtuse angle?

Back

An angle that measures more than 90 degrees but less than 180 degrees.

Front

What is the Triangle Inequality Theorem?

Back

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

What is the definition of a scalene triangle?

Back

A triangle with all sides of different lengths.