Midterm Review - Geometry

Front

What are complementary angles?

Back

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

Front

If m∠DFG = 70°, what is m∠JKL if they are complementary?

Back

m∠JKL = 20°.

Front

How do you calculate the distance between two points (x1, y1) and (x2, y2)?

Back

Use the distance formula: d = √((x2 - x1)² + (y2 - y1)²).

Front

Find the distance between the points (3, 24) and (7, 56).

Back

The distance is 32.2.

Front

What is the Segment Addition Postulate?

Back

The Segment Addition Postulate states that if point B is between points A and C, then AB + BC = AC.

Front

If RT = 36 and you have segments RS and ST, how do you find x using the Segment Addition Postulate?

Back

Set up the equation RS + ST = RT and solve for x.

Front

If RT = 36 and RS = 2x + 4, ST = 3x - 2, find x.

Back

x = 4.

Front

What is an angle bisector?

Back

An angle bisector is a ray that divides an angle into two congruent angles.

Front

If ray BD bisects angle ABC, what equation can be formed?

Back

5x - 11 = 4x + 1.

Front

What does it mean for two angles to be congruent?

Back

Two angles are congruent if they have the same measure.