In a cylinder sum of radius and height is 10 cm. lateral surface area is 440 sq.cm. find the radius and height of the cylinder
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Given that h+r=10cm
h=(10-r)cm .........(i)
CSA=2×22/7×r×h
440×7÷22×2= r×h
r×h=10cm
Substituting value of (i) in above equation:
r×(10-r)=10
10r-r²=10
r²-10r+10=0
......
aage solve kar ke dekh lena
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