A cylinder has a volume of 231 sq. cm. If the height of cylinder is 6 cm, a ball will fit inside the cylinder if its radius is

Circle

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4 cm

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2.5 cm

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5 cm

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Solution

The correct options are
A
Circle

C 2.5 cm
Volume of cylinder $= π \times r^{2} \times h$
$\Rightarrow 231 = \frac{22}{7} \times r^{2} \times 6$
$\Rightarrow r = 3.5$
So, a ball will fit inside the cylinder if its radius is less than 3.5 cm.
Thu, options A and C are correct.

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A cylinder has a volume of 231 sq. cm. If the height of cylinder is 6 cm, a ball will fit inside the cylinder if its radius is

The correct options are A Circle C 2.5 cmVolume of cylinder =π×r2×h ⇒231=227×r2×6 ⇒r=3.5 So, a ball will fit inside the cylinder if its radius is less than 3.5 cm. Thu, options A and C are correct.

The correct options are
A
Circle

C 2.5 cm
Volume of cylinder $= π \times r^{2} \times h$
$\Rightarrow 231 = \frac{22}{7} \times r^{2} \times 6$
$\Rightarrow r = 3.5$
So, a ball will fit inside the cylinder if its radius is less than 3.5 cm.
Thu, options A and C are correct.