the height of the cylinder correct to one decimal place.

1.5

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1.1

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1.9

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1.6

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Solution

The correct option is D $1.6$ cm
Given, a cylinder with diameter $20$ cm and curved surface area $100$ sq. cm.
Radius $= \frac{d}{2}$ $= 10$ cm
Curved surface area $= 2 π r h$
$\Rightarrow 100 = 2 \times \frac{22}{7} \times 10 \times h$
$\Rightarrow h = \frac{100 \times 7}{2 \times 22 \times 10}$
$\Rightarrow h = 1.6$ cm
Height of cylinder $= 1.6$ cm

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the height of the cylinder correct to one decimal place.

The correct option is D 1.6 cmGiven, a cylinder with diameter 20 cm and curved surface area 100 sq. cm.Radius =d2 =10 cmCurved surface area =2πrh⇒100=2×227×10×h⇒h=100×72×22×10⇒h=1.6 cmHeight of cylinder =1.6 cm