Question

A ladder makes an angle of 60° with the ground when placed against a wall. If the foot of the ladder is 2 m away from the wall, then the length of the ladder (in metres) is
A. 4/√3
B. 4√3
C. 2√2
D. 4

Answer 1

Answer:

D.4

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Answer 2

D. 4

Step-by-step explanation:

In triangle ABC, we get angle B = 60, angle C = 90.

The ladder forms the hypotenuse AB. AC is the wall. Distance between wall and ladder is BC, which is the adjacent side is 2m. Let AB be x.

Cos 60 = adjacent / hypotenuse

 1/2 = 2/x

 Therefore x = 4

Option D is the answer.