Review Geometry Semester 1

Front

What is the measure of vertical angles?

Back

Vertical angles are congruent.

Front

If two angles are complementary, what is the sum of their measures?

Back

The sum of complementary angles is 90°.

Front

If two angles are supplementary, what is the sum of their measures?

Back

The sum of supplementary angles is 180°.

Front

What is the result of rotating a point (x, y) 180° about the origin?

Back

The new coordinates will be (-x, -y).

Front

Find the measure of angle R if m∠R = 65°.

Back

m∠R = 65°.

Front

What is the measure of angle 2 if m∠2 = 50°?

Back

m∠2 = 50°.

Front

Solve for x: 2x + 10 = 118.

Back

x = 54.

Front

What is the distance formula in a coordinate plane?

Back

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

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.