Topic 5 Review

Front

Solve for x: 2x + 4 = 0

Back

x = -2

Front

If two angles of a triangle are 40° and 50°, what is the measure of the third angle?

Back

The third angle measures 90°.

Front

Use the Exterior Angle Theorem: If one exterior angle is 120°, what is the sum of the two opposite interior angles?

Back

The sum of the two opposite interior angles is 120°.

Front

What postulate states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent?

Back

SAS (Side-Angle-Side) Postulate.

Front

What do the angles in an isosceles triangle measure if the equal angles are 45°?

Back

The angles measure 45°, 45°, and 90°.

Front

Solve for x: 3x - 9 = 0

Back

x = 3

Front

If the angles of a triangle are 30°, 60°, and 90°, what type of triangle is it?

Back

It is a right triangle.

Front

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

Back

The sum is 180°.

Front

If one angle of a triangle is 70° and the other two angles are equal, what are the measures of the equal angles?

Back

Each equal angle measures 55°.

Front

What is the measure of each angle in a regular pentagon?

Back

Each angle measures 108°.