Question

12) The angle of elevation of the top of the first storey of the building is 30° at a point on the
ground distant 15 metres from its foot. How high its second storey will be, if the angle of
elevation of the top of the second storey at the same point is 45°.
(Ans.6.34 m)​

Answer 1

Answer:

Answer :6.34 m

Step-by-step explanation:

Answer is attached above...