Question

6. The angle of depression from the top of a tower 15 meters
high, at a point on the ground is 30. The distance of the
point from the top of the tower is -
A) 30 m
B) 10V 3 m
C) 15 m
D) 2013 m
7. •tan is not defined when 'e' is
A) 90° 0 B) 60°
C) 30°
D) O
8.The ratio of the shadow of a tree and its height is 3.1.
Then the angle of elevation of the sun rays with the
ground is ------
11
A) 60°
B) 90°
C) 30°
D) 45​

Answer 1

Distance of the point from the top of the tower  = 30  m

Step-by-step explanation:

The angle of depression from the top of a tower 15 meters

high, at a point on the ground is 30°

=> Sin 30°  = Tower height/ distance of the point from the top of the tower

=> 1/2 = 15/distance of the point from the top of the tower

=> distance of the point from the top of the tower  = 30  m

tan is not defined when  90°

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