Question

PLZ HELP I CANT DO THIS QUESTION!!!!

Answer 1

Explanation:

(A) (In the fig. triangle represented by small triangle with angle of elevation 30° and height h1 ) ( Using this explanation since the figure is not marked)

`tan30 = (h1)/(40)`

`h1 = (40)/(√(3) ) m`

(B) (In the fig. triangle represented by small triangle with angle of depression 58° and height h2 )

`tan58 = (h2)/(40)`

`h2 = 64m`

(C)

`Height \: of \: Building \: A = h2 = 64m`

`Height \: of \: Building \: B = h1+h2 = (64 + (40)/( √(3) ) )</strong><strong>=</strong><strong> </strong><strong>87m</strong><strong>`