Question

a boy standing at a distance of 48 m from a building observes the top of the building and makes an angle of elevation of 30°. Find the height of the building​

Answer 1

distance between boy and building=x=48m

height of building=ym

angle of elevation=z=30

y/x=tan30=//3 to the power 1/2=y/48

48/3 to the power 1/2=y

=48x3 to the power 1/2 divided by 3(rationalising)

=(24 multiplied with 3 to the power 1/2)m