Jacky has to repair his window so he used a ladder. He placed the ladder 12 feet from a window. The ladder reaches 14 feet up on the window. How long is the ladder?

1 Answer
Harish Chandra Rajpoot
Jul 21, 2018

#18.439\ \text{feet}#

Explanation:

Consider the right triangle with legs #12# feet & #14# feet. The length of ladder will be equal to the hypotenuse of right triangle with legs #12# feet & #14# feet which is given as

#\sqrt{12^2+14^2}#

#=2\sqrt85#

#=18.439\ \text{feet}#

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