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A spotlight is mounted on the eaves of a house 15 feet above the ground. A flower bed runs between the house and the sidewalk, so the closest the ladder can be placed to the house is 8 feet. How long a ladder is needed so that an electrician can reach the place where the light is mounted?

 

The lenght of the ladder needs to be ____- Ft.

 Apr 26, 2016
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The ladder will form the hypotenuse  of a right triangle whose two legs are 15 and 8.....so
 the ladder length will =

 

sqrt ( 15^2 + 8^2 )  = sqrt (225 + 64)  = sqrt (289)   = 17 ft.

 

 

cool cool cool

 Apr 26, 2016

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