Question
Mathematics Question on Trigonometry
A ladder 15 m long reaches a window which is 9 m above the ground on one side of a street.Keeping its foot at the same point, the ladder is turned to the other side of the street to reach a window 12 m high. Find the width of the street.
A
19 m
B
21 m
C
20 m
D
22 m
Answer
21 m
Explanation
Solution
The correct option is (B) :21 m