Base area of circular cylinder is $154 {c m}^{2}$ . Then its radius is

14 c m

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21 c m

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7 c m

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10.5 c m

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Solution

The correct option is D $7 c m$
Base of a cylinder is circle
Area of base is $π r^{2}$
$\Rightarrow 154 = \frac{22}{7} r^{2} \Rightarrow r = 7 c m$

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Similar questions

Q. For a right circular cylinder of base radius = 7 cm and height = 14 cm, which is false?
(a) Curved surface area = 616 cm².
(b) Total surface area = 924 cm².
(c) Volume = 2156 cm³.
(d) Total area of the end faces = 154 cm².

Q. The height of a right circular cylinder is

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Q. The height of a right circular cylinder is

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Base area of circular cylinder is 154 cm2. Then its radius is

The correct option is D 7 cmBase of a cylinder is circleArea of base is πr2⇒154=227r2⇒r=7 cm

Base area of circular cylinder is $154 {c m}^{2}$ . Then its radius is

The correct option is D $7 c m$
Base of a cylinder is circle
Area of base is $π r^{2}$
$\Rightarrow 154 = \frac{22}{7} r^{2} \Rightarrow r = 7 c m$