Front

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

Back

180 degrees

Front

What is an exterior angle of a triangle?

Back

An angle formed by one side of the triangle and the extension of an adjacent side.

Front

What is the angle sum property of a triangle?

Back

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

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

What type of angle is exactly 90 degrees?

Back

Right angle

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is a remote interior angle?

Back

An interior angle of a triangle that is not adjacent to a given exterior angle.

Front

If one angle of a triangle is 60 degrees and another is 70 degrees, what is the measure of the third angle?

Back

50 degrees (180 - 60 - 70 = 50).

Front

What is the relationship between an exterior angle and the two remote interior angles?

Back

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

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.