Question

the curved surface area of a right circular cylinder is 308cm square slant height 14cm . the radius of the base is​

Answer 1

Answer:

Radius = 7 cm

Step-by-step explanation:

Given :-

• CSA of right circular cylinder = 308 cm²
• Slanght height = 14 cm

To Find :-

Radius of its base

Solution :-

We know that

CSA of right circular cylinder = πrl

=> 308 = 22/7 × r × 14

=> 308 = 22 × r × 2

=> 308 = 44r

=> 308/44 = r

=> 7 = r

Therefore

Radius of its base is 7 cm

Answer 2

Question :-

• The curved surface area of a right circular cylinder is 308 cm² . The Slant Height is 14 cm . Find the Radius base .

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Answer :-

• Radius base of Cylinder = 7 cm .

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Explanation :-

• Here, Curved Surface Area of cylinder is given 308 cm² . Slant heigh is 14 cm . And, we have to calculate Radius of the base .

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● Using Concept :-

• $\sf{Curved \: Surface \: Area = \pi rh}$

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◆ Where ,

• R denotes to Radius .
• H denotes to Height .

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∴ By substituting the given values :-

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$\Longrightarrow \: \: \sf{308 = \frac{22}{7} \times r \times 14}$

$\Longrightarrow \: \: \sf{308 = \frac{22}{1} \times r \times 2}$

$\Longrightarrow \: \: \sf{308 = \frac{44}{1} \times r }$

$\Longrightarrow \: \: \sf{ Radius = \frac{308}{44} }$

$\Longrightarrow \: \: \sf{Radius = 7 \: cm}$

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Hence :-

• Radius base of Cylinder = 7 cm .

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