Question

Naitik visited a watch tower at outskirt of a village. From watch tower he saw an aeroplane

flying over an electric power tower. Angle of elevation of aeroplane was 600

while angle of

elevation of top of electric tower measures 300

. Electric power tower is 100 meter away

from watch tower. After some time Naitik saw a car approaching watch tower forms an

angle of depression measuring 450

.

Attempt any four out of five sub questions given below

a) What is distance between car and watch tower?

1) 20 m 2) 100 m 3) 20√2 m 4) 20√3 m

b) What is height of tower?

1) 40 m 2) 60√2 m 3) (40√2 + 20) m 4) (40√3 +20) m

c) At what height from ground aeroplane was flying ?

1) 140 m 2) 60√2 m 3) (120√2 + 20) m 4) (120√3 +20) m

d) What is height of aeroplane over electric tower?

1) 40 m 2) 80√3 m 3) (80√2 + 20) m 4) (80√3 +20) m

e) What is distance between car and electric tower?

1) 40 m 2) 60√2 m 3) 120 m 4) 100 m
plzz tell answers​

Answer 1

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