9. Which of the following degree measures will satisfy that an angle is obtuse?

A. 89o B. 89.9o C. 90o D. 90.10o

10.Given the figure below, which of the statements is correct?

A. ̅̅̅̅ + ̅̅̅̅ = ̅̅̅̅ C. ̅̅̅̅ + ̅̅̅̅ = ̅̅̅̅

B. ̅̅̅̅ + ̅̅̅̅ = ̅̅̅̅ D. ̅̅̅̅ + ̅̅̅̅ = ̅̅̅̅

11.Which of the following refers to the measure of an obtuse angle?

A. 0

o < x < 90 C. 90o < x < 180o

B. x = 90o D. 180o < x < 360o

12. Given the figure at the right, which of the

following statements is TRUE?

A. Points M, B, and X are collinear.

B. Points F, T, and O are coplanar.

C. Points R, B, and M are non-collinear.

D. Points D, M, and P are non-coplanar.

13. Given the figure below, how long is ̅̅̅̅̅?

A. 69

B. 40

C. 29

D. 11

14. Given the figure at the right, if AC = 23, find x.

A. 2 C. 4

B. 3 D. 5

15. If m∠ABD = 100, find m∠CBD.

A. 62

B. 38

C. 27

D. 15​