The length of the shadow of a pole on level ground increases by 90 metres when the angle of elevation of the sun changes from 58 degrees to 36 degrees. calculate and correct to three s. f , the height of the pole

120 m

Step-by-step explanation:

Let the length of the pole be a and the shadow be b at 58° and b+90 at 36°.

Then, as the pole and its shadow form a right triangle, we have:

As,

The equations change to:

Comparing the two equations:

Then

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step-by-step explanation:

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try looking in the very back of the book : )

step-by-step explanation:

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