Question

36. The angle of elevation of the top of a
tower from a point A on the ground is 30 on
moving a distance of 20 metres towards the
foot of the tower to a point B, the angle of
elevation increases to 60°. Find the height of
the tower and distance of the tower from the
point A.​

Answer 1

l+b =20

and height =100

by taking formula sinteta = l+b/2

hence 30+20/2

50/2

25

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