Question

Find the length of the lamppost to the nearest inch.

Answer 1

109 inch

Explanation:

we know that

`tan\theta=(Perp)/(Base) \\\theta=70\\Base=40 in`

So,

`tan(70)=(Perp)/(40) \\\\2.747=(Perp)/(40) \\\\2.747*40=Perp\\\\Perp=109\quad in`

So, length of lamppost is 109 inch