Interior and Exterior Angles

Front

What is an interior angle?

Back

An interior angle is an angle formed between two sides of a polygon that is inside the polygon.

Front

What is an exterior angle?

Back

An exterior angle is an angle formed between one side of a polygon and the extension of an adjacent side.

Front

How do you calculate the sum of interior angles of a polygon?

Back

The sum of the interior angles of a polygon can be calculated using the formula: (n - 2) × 180°, where n is the number of sides.

Front

What is the measure of each interior angle in a regular hexagon?

Back

Each interior angle in a regular hexagon measures 120°.

Front

What is the relationship between interior and exterior angles?

Back

The interior angle and its corresponding exterior angle are supplementary, meaning they add up to 180°.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

If one angle is 34°, what is its corresponding exterior angle?

Back

The corresponding exterior angle is 146° (180° - 34°).

Front

What is the measure of angle b if angle a is 63° and they are supplementary?

Back

Angle b measures 117° (180° - 63°).