Geometry Chapter 1-4 Review

Front

What is the midpoint formula for finding the coordinates of a midpoint M between two points J(x1, y1) and L(x2, y2)?

Back

M = ((x1 + x2)/2, (y1 + y2)/2)

Front

If M is the midpoint of segment JL, and J has coordinates (2, -1), what are the coordinates of L if M is (-4, 3)?

Back

L = (-10, 7)

Front

What is the value of x if 6y = 24 and y = x?

Back

x = 4

Front

What property states that if a = b, then a + c = b + c?

Back

Addition Property of Equality

Front

What property states that if a = b, then a - c = b - c?

Back

Subtraction Property of Equality

Front

What is the definition of complementary angles?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

If two lines intersect, what is the name of the point where they meet?

Back

Point

Front

What is the definition of a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What theorem states that if two angles are complementary to the same angle, then they are congruent?

Back

Congruent Complements Theorem

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height