sillymonkey1 sillymonkey1

26-02-2017
Mathematics

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Extreme road makes an angle of 20° with the horizontal. When the angle of elevation of the sun is 51° a vertical pole beside the road cast a 6 feet long shadow uphill parallel to the road. Approximate the length of the pole?

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ChandrikaP ChandrikaP

26-02-2017

Tan51°=length of a pole/shadow of a pole
Tan51=h/6
H= tan51×6
Now ucan find

(Assumption is made here angle of elevation of a sun is made with horizontal line,not with the road,if it is with the road then u need to add it 51+20=71
Then find tan71,answer may differ)

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