Maths: Important Topic: 
Self Assessment Test

height-and-distance
QNo.1    The top of a 15 metre high tower makes an angle of elevation of 60° with the bottom of an electric pole and angle of elevation of 30° with the top of the pole. What is the height of the electric pole ? 0
5 metres
8 metres
10 metres
12 metres
QNo.2    The angle of elevation of the sun, when the length of the shadow of a tree is √3 times the height of the tree, is :________? 0
30°
45°
60°
90°
QNo.3    From a point P on a level ground, the angle of elevation of the top of a tower is 30°. If the tower is 100 m high, the distance of point P from the foot of the tower is :_________? 0
149 m
156 m
173 m
200 m
QNo.4    If the height of a pole is 2√3 metres and the length of its shadow is 2 metres, find the angle of elevation of the sun. 0
50°
60°
70°
80°
QNo.5    Two ships are sailing in the sea on the two sides of a lighthouse. The angles of elevation of the top of the lighthouse as observed from the two ships are 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is :_________? 0
173 m
200 m
273 m
300 m
QNo.6    The angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is :_________? 0
2.3 m
4.6 m
7.8 m
9.2 m