From the top of a vehicle cliff 20m high, a boat at sea can be sighted 75m away and on the same horizontal position as the cliff. Calculate, correct to the nearest degree, the angle of depression of the boat from the top of the cliff. 

Similar Questions

If sin 3y = cos 2y and 0o $\leq$ 90o, find the value of y...

How many times, correct to the nearest whole number, will a man run round a circular track of diamet...

A bucket is 12 cm in diameter at the top, 8 cm in diameter at the bottom and 4 cm deep. Calculate it...

The first term of a G.P is 7. Find its 4th term, if its common ratio is 3. ...

If cot $\theta$ = $\frac{x}{y}$, find cosec$\theta$...

If the surface area of a sphere increased by 44%, find the percentage increase in diameter ...

Simplify $\sqrt[3]{(64r^{-6})^{\frac{1}{2}}}$...

In the figure PQR a straight line segment, PQ = QT. Triangle PQT is an isosceles triangle, < SRQ is ...

Solve the given equation $(\log_{3} x)^{2} - 6(\log_{3} x) + 9 = 0$...

If events X and Y are mutually exclusive, P(X) = 1/3 and P(Y) = 2/5, P(X∪Y) is ...