Answers

The Brainliest Answer!
2014-08-12T15:49:04+05:30
Lateral surface area = 23.10 cm²
l = √(h² + r²) =  √(7.84 + r²)
lateral surface area = π r l
so 
23.10 = 3.14 x r x √(7.84 + r²)
⇒  r x √(7.84 + r²) = 7.35
⇒7.84 + r² = 54.02 /r²
solving r we get 
r = 2.1003 cm

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