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This rectangular prism is intersected by a plane that contains points N, P, U, and R.

 

What is the perimeter of the cross section?

 

Round to the nearest tenth.

 

Guest May 6, 2017
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 #1
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Two of the parallel sides of the plane will each equal NP  = 6

 

The  other two parallel sides will each equal PU  =  sqrt ( 6^2 + 15^2)  =  sqrt (36 + 225) =

sqrt ( 261)

 

So.....the perimeter  of NPUR  =  2 [ 6 + sqrt (261) ] ≈ 44.3 ft

 

 

cool cool cool

CPhill  May 7, 2017

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