Solution of Right Triangles Test

Result

Solution of Right Triangles Test - 1

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Question 1
1 / -0

A boy is standing at some distance from a 60 m tall building such that angle of elevation of the top of the building from the boy is 30^o. He moves x metre close to the building such that angle of elevation is now 60^o. Find the value of x.

A
40√3

B
40

C
40/√3

D
60
Question 2
1 / -0

A boy is standing at a distance of 6 feet from a 10 feet long wall. The angles of elevation of the top of the wall from head and foot of the boy areθ andϕ, respectively such that tanϕ = 2 tanθ. Find the height of the boy(in feet).

A
4 ft

B
6 ft

C
5 ft

D
3 ft
Question 3
1 / -0

If a ladder makes an angle 45^o with a wall and reaches a height of 15 feet, the length of the ladder is

A
15 ft

B
18 ft

C
15√2 ft

D
20 ft