Question

a ladder of length 15 feet reaches a window which is 12 feet above the ground. keeping the foot of the ladder at the same place, the ladder is turned to the other side of street so that is just reaches the window which is 9 feet above the ground. find the width of street.​

Answer 1

Answer:

10m

Step-by-step explanation:

Answer 2

Step-by-step explanation:

In ∆ABC,

AD²+AC²=CD²

9²+AC²=15²

AC²=225–81

AC=12M

In ∆ BEC,

EC²=BC²+BE²

15²=12²+BC²

224–144=BC²

BC= 9M

WIDTH OF THE ROAD =AC+BC=12+9 = 21m

Answer is 21 m

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