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CBSE Class 10 Answered

A ladder is leaning against a wall making an angle of 600 with the ground. Find the distance of the foot of the ladder from the wall if the other end is 14 m above the ground?
Asked by Topperlearning User | 02 Nov, 2017, 10:02: AM
answered-by-expert Expert Answer

Let AB be the wall and BC be the ladder.

angle of elevation, ∠ACB = 600
Then AB = 14 m and let AC = x m
 
begin mathsize 12px style AC over BC equals cos 60 degree rightwards double arrow straight x over 14 equals 1 half rightwards double arrow straight x space equals space 14 over 2 space straight x space equals space 7 space straight m end style
Distance of the foot of the ladder from the wall is 7 m.
Answered by | 02 Nov, 2017, 12:02: PM

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