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)