Additive Angles

Front

What is an angle?

Back

An angle is formed by two rays (sides) that share a common endpoint (vertex).

Front

What is the sum of angles in a triangle?

Back

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

Front

What is the sum of angles in a quadrilateral?

Back

The sum of angles in a quadrilateral is always 360 degrees.

Front

What is an additive angle?

Back

Additive angles are angles that can be added together to find a total angle measure.

Front

If one angle measures 25° and another measures 40°, what is their sum?

Back

The sum is 65°.

Front

What is the missing angle if 25°, 40°, and 95° are given and the total is 360°?

Back

The missing angle is 200°.

Front

How do you find a missing angle in a polygon?

Back

To find a missing angle, subtract the sum of the known angles from the total angle sum of the polygon.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What is the measure of a straight angle?

Back

A straight angle measures 180 degrees.

Front

What is the measure of a full angle?

Back

A full angle measures 360 degrees.