Question

40. The angles of elevation of the top of a tower 30 m. High, from two points on the level ground on its opposite sides are 45° and 60° what is the distance between the two points? (1) 47.32 m (2) 41.23 m (3) 38.12 m (4) 52.10 m

11th - 12th Class

Maths

Solution

4.0 (1 ratings)

In ( triangle A B D ) ( A D=B D quadleft(because 45^{circ}-45^{circ}-90^{circ} text { triangle }right) ) ( therefore B D=30 mathrm{m} ) In ( triangle A C D ) (1) ( 47 cdot 32 )