TRY: the Midpoint of XY Is M (3, -4)

Geom. Accel. Ch 1 Review Name: ______

1) For the following, answer Always, Sometimes or Never (A, S, N).

a) ______Definitions are reversible.

b) ______The contrapositive of a true statement is a false statement.

c) ______If CP = PR, C, P and R are collinear.

2) Write the inverse and the converse of the following statement.

“If a ray bisects and angle, then it divides the angle into two congruent angles.”

Inverse:

Converse:

3) Solve for y and then find the m  1.

(3y + 20)° (5y – 50)° 1

y=______m  1=______

4) BT bisects  ABC. Find the value of x and m  TBC.

(6x)° B  (5x + 10)° T x=______ C m TBC =______

5) The midpoint of XY is M (3, -4). One endpoint is Y (-3, -1). Find the coordinates of the other endpoint. 6) B is the midpoint of AC. If AB = x2 + 3 and BC = 2x + 18, find AC.

7) If a point is selected at random on a number line somewhere between -8 and 18, what is the probability that the number is negative?

8) The measure of  A is six times the measure of  B. If the sum of the two angles is 42˚ , then find m  A. Define the variables, set up an equation and solve.

Let m ____= ______then m ____= ______

m A=______

9) WY = 25 and WX to XY is in a ratio of 3:2. Find WX. Label the diagram, set up an equation and solve. W X Y

WX = ______

P 10) a) QP  QN = ______Q b) NR  RO  ON = ______R

c)  PRQ ∩ NO = ______O N

 11) If  1  2, then: Q 1 2 R ______

P T S F 12) If FH bisects  EFG, then: ______

***Is EH  HG ? E H G 13) Given: m  CDE = 110° E m  FGH = 110° C D Conclusion:  CDE   FGH Reasons: F

Flow Proof G H ______

A D 14) Given:  A is a right  m  C = 90° Prove:  A   C Reasons: B C 2 Column Proof ______

Paragraph Proof

Flow Proof Optional book problems: P55-7 # 12, 13, 15, and 33.