Line, Angle and Triangle Page-2

9) In the figure below what is the value of x
  lines-angle-triangles
(A) 6
(B) 8
(C) 10
(D) 20

10) In the figure below, LM is parallel to AB. What is the value of x?
  lines-angle-triangles
(A) 37
(B) 45
(C) 53
(D) 63

11) In the figure below, what is the average of the measures of the five angles
  lines-angle-triangles
(A) 36
(B) 45
(C) 60
(D) 72

12) In the figure below, what is the value of x if y:x = 3:2?
  lines-angle-triangles
(A) 18
(B) 27
(C) 36
(D) 45

13) In the figure below lines k and l are parallel. What is the value of b-a?
  lines-angle-triangles
(A) 15
(B) 30
(C) 45
(D) 60


14) In the figure below, what is the average of a, b and c?
  lines-angle-triangles
(A) 45
(B) 60
(C) 90
(D) 180

15) In the figure below, what is the value of x?
  lines-angle-triangles
(A) 45
(B) 75
(C) 60
(D) 120

16) Two sides of a right angle triangle are 12 and 13. Which of the following could be the length of the third side?
I. 5
II. 11
III. √313

(A) I only
(B) II only
(C) I and II only
(D) I and III only



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