the height of the cylinder correct to one decimal place.
1.5 cm
1.1 cm
1.9 cm
1.6 cm
A
1.5 cm
B
1.6 cm
C
1.1 cm
D
1.9 cm
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Solution
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Given, a cylinder with diameter 20 cm and curved surface area 100 sq. cm. Radius =d2=10 cm Curved surface area =2πrh ⇒100=2×227×10×h
⇒h=100×72×22×10
⇒h=1.6 cm Height of cylinder =1.6 cm
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