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?

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)

The answer is  P<1.50