2. The curved surface area of a right circular cylinder is 4400cm? If the
circumference of its base is 110 cm, then its height is
a. 36 cm
b. 40 cm
c. 38 cm
d. 42 cm
Answers
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Step-by-step explanation:
circumference of its base =110
2πr=110
2*22/7*r=110
44/7*r=110
r=110*7/44
r=2.5*7
r=17.5
C.S.A= 4400Cm*cm
2πrh=4400cm*cm
2*22/7*17.5*h=4400cm*cm
44/7*17.5*h=4400cm*cm
770/7*h=4400cm*cm
110*h=4400cm
h=4400/110
h=40cm
volume = πr*r*h
=22/7*17.5*17.5*40
=269500/7
=38500cm*cm
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