2 A ladder leans against a wall. The angle between the ladder and the ground is 60°. If the ladder is 10 m long, how high up the wall does it reach? A 5√3 m B 5 m C 10√3 m D 20 m
5 In a right-angled triangle, what is the ratio of the opposite side to the hypotenuse? A sine B cosine C tangent D cotangent
9 In a right-angled triangle, if the opposite side is 6 and the adjacent side is 8, what is tan θ? A 3/4 B 4/3 C 3/5 D 5/4
12 A triangle has sides 3, 4, and 5. What is the sine of the angle opposite the side of length 3? A 3/5 B 4/5 C 3/4 D 4/3
17 A ladder 13 m long reaches a window 12 m high. What is the angle of elevation of the ladder? A sin⁻¹(12/13) B cos⁻¹(12/13) C tan⁻¹(12/13) D tan⁻¹(13/12)