Question

The angle of elevation and depression of the top and bottom of a light house from the top of a building 60m high ,are 30 degree angle and 60 degree angle respectively . Find (a) distance between the lighthouse and building

Answer 1

Answer:

$y = 40 \sqrt{3}$

Step-by-step explanation:

$\cos(30) = \sqrt{3 } \div 2$

$\sqrt{3} y = 60 \times 2$

$y = 120 \div \sqrt{3}$

$y = 40 \sqrt{3}$