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 KCSE Mathematics Paper 2 Revision Questions and Answers Set 6

The figure below shows the position of a boat Q which is observed sailing directly towards the pier P at the base of a vertical cliff PT. the angle of elevation of the top of the cliff from Q is 25.40. after 14seconds the boat is at point R and the angle for elevation of T is now 64.70.
If the cliff is 50m high, calculate
a)the distance PQ
b)the distance QR
c)the speed of the boat in km/hr
tp61036.JPG

 (4m 34s)
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