Geometry Semester Review

Front

What is the measure of an angle in a triangle if the other two angles measure 96° and 25°?

Back

The measure of the third angle is 59°.

Front

How do you find the measure of an angle when given the measures of the other angles in a triangle?

Back

Use the triangle sum theorem: the sum of the angles in a triangle is 180°.

Front

What is the formula to find the distance between two points in a coordinate plane?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).

Front

Calculate the distance between the points (-12, 1) and (12, -1).

Back

The distance is 24.08.

Front

What is an adjacent angle?

Back

Adjacent angles are two angles that share a common side and a common vertex.

Front

If m∠AOB = 50°, what is the measure of an angle adjacent to it?

Back

An adjacent angle could be any angle that shares a side with ∠AOB, such as ∠AOC.

Front

What is the value of x if 2x + 12 = 96?

Back

x = 42.

Front

What is the relationship between complementary angles?

Back

Complementary angles are two angles whose measures add up to 90°.

Front

What is the relationship between supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180°.

Front

How do you find the measure of an angle if you know its supplement?

Back

Subtract the measure of the supplement from 180°.