If the lateral surface of a cylinder is $94.2 {c m}^{2}$ and its height is $5 c m$ , then find radius of its base. (Use $π = 3.14$ )

3 c m

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2 c m

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4 c m

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5 c m

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Solution

The correct option is A $3 c m$
Let radius of base be 'r' cm
Now, surface area of cylinder $= 2 π r h 2 π r h = 94.2 {c m}^{2} 2 \times 3.14 \times r \times 5 = 94.2 r = \frac{94.2}{31.4} = 3 c m$

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Similar questions

If the lateral surface of a cylinder is 94.2 cm² and its height is 5 cm, then find (i) radius of its base (ii) its volume. [Use π = 3.14]

If the lateral surface of a cylinder is 94.2 $c m^{2}$ and its height is 5 cm, find :

(i) radius of its base

(ii) volume of the cylinder [Use $π$ = 3.14]

Question 4 (ii)
If the lateral surface of a cylinder is $94.2 c m^{2}$ and its height is 5 cm, then find:

(ii) its volume. $[U s e π = 3.14]$

94.3 {c m}^{2}

5 c m

π = 3.14

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