Multiple Choice Questions
Unit F7
Trigonometry
For each of these questions, choose the option that is TRUE.
1

This question refers to the triangle PQR in which angle QPR = 90°, PR = 12 cm and PQ = 5 cm.

The length of QR, in cm, is

  • (A)
    7
  • (B)
    11
  • (C)
    13
  • (D)
    17
2

The diagram above shows a circle with centre O. A line ON is drawn perpendicular to AB. OA = 10 cm and AB = 16 cm.

The length, in cm, of ON is

  • (A)
    5
  • (B)
    6
  • (C)
    8
  • (D)
    10
3

The triangle ABC above shows the angle of elevation of the top, B, of a tower, BC, from A, to be 30°. AB = 40 m. The length of BC is

  • (A)
    40 tan 30°
  • (B)
    40 sin 60°
  • (C)
    40 tan 60°
  • (D)
    40 sin 30°
4

In the diagram above, which of the following is true?

  • (A)
    sin e =
  • (B)
    cos e =
  • (C)
    sin e =
  • (D)
    tan e =
5

Question 5 refers to the diagram below.

A plane travels from point A on a bearing 150° to a point B 10 km from A. How far east of A is B?

  • (A)
    10 cos 60°
  • (B)
    10 cos 30°
  • (C)
    10 sin 60°
  • (D)
    10 tan 30°
Total: - of marks
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