A boy

A boy of height 1.7m is standing 30m away from the flagstaff on the same level ground. He observes that the angle of deviation of the top of the flagstaff is 30 degrees. Calculate the height of the flagstaff.

Correct answer:

h =  19.0205 m

Step-by-step explanation:

a=30 m b=1.7 m A=30   tan A =  x/a  h=b+a tan(A° rad)=b+a tan(A° 180π )=1.7+30 tan(30° 1803.1415926 )=19.021=19.0205 m



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