The surface area of a cuboid is is 468 centimetre square its length and breadth are 12 CM and 9 CM respectively find its height
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Answer:
TSA of cuboid = 468cm square
Formula : 2(lb +lh+bh)
Length = 12cm
Breadth = 9cm
Height =??
Step-by-step explanation:
Substitute the given values for the formula
468 = 2 [12*9+12*h+9*h]
468/2 = [108+12h+9h]
234 = 108 + 21h
234 - 108 = 21h
21h = 126
h = 126/21
h = 6cm
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