Answers

2015-04-02T18:52:31+05:30
Given,
surface area=5544
4x22/7xrxr=5544
rxr=5544x7/22x1/4
rxr=441
r=21 cm(square root on both sides)
diameter=2r
             =2x21
             =42 cm
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2015-04-02T18:59:43+05:30
Total surface area of  sphere = 4pi r square 
4
×22/7×r×r=5544
= r square = 5544×7/4×22
=r=21
since diameter =2r =  2x21
: .  there fore  diameter =  42 cm.
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