Angles Review

Front

If m∠1 = 30°, then m∠3 = ?

Back

30°

Front

Find the measure of each angle indicated: ?

Back

25°

Front

Find the value of x: ?

Back

28°

Front

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.

Back

180°

Front

What is the SUM of the angle measures in a hexagon (6 sides)?

Back

720°

Front

What is an angle?

Back

An angle is formed by two rays with a common endpoint called the vertex.

Front

What is a right angle?

Back

A right angle measures exactly 90°.

Front

What is an acute angle?

Back

An acute angle measures less than 90°.

Front

What is an obtuse angle?

Back

An obtuse angle measures more than 90° but less than 180°.

Front

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

Back

(n-2) × 180°, where n is the number of sides.