Rectangular trapezium

Calculate the perimeter of a rectangular trapezium when its area is 576 cm2 and side a (base) is 30 cm, height 24 cm.

Correct answer:

o =  98.8328 cm

Step-by-step explanation:

S=576 cm2 a=30 cm v=24 cm  S = (a+c)v /2 c=2 S/va=2 576/2430=18 cm  b=v2+(ac)2=242+(3018)2=12 5 cm26.8328 cm  d=v=24 cm o=a+b+c+d=30+26.8328+18+24=98.8328 cm

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