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One of the bases of a trapezoid has length 10, and the height of the trapezoid is 4. If the area of the trapezoid is 38, then how long is the other base of the trapezoid?

 Mar 30, 2021
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Area  =  (1/2) height  * ( sum of base lengths)

 

38  =  (1/2) (4)  ( 10  + x)

 

38 = 2  ( 10 + x)

 

38 / 2   =  10 +  x

 

19  =  10 + x

 

19 - 10  = x   =  9 =   the other base length

 

 

cool cool cool

 Mar 30, 2021

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