Question

Example 14. A 1.2 m tall girl spots a
balloon moving with the wind in a horizontal
line at a height of 88.2 m from the ground. The
angle of elevation of the balloon from the eyes
of the girl at any instant is 60°. After some
time, the angle of elevation reduces to 30° (see
figure). Find the distance travelled by the bal-
loon during the interval.​

Answer 1

Answer:

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