The volume of the cylinder is 15400 cm3 and its height is 25 cm then w

1.	The volume of the cylinder is 15400 cm3 and its height is 25 cm then what is the curved surface area?1. 2100 cm22. 3300 cm23. 1100 cm24. 2200 cm2
Answer» Correct Answer - Option 4 : 2200 cm² Given: Volume = 15400 cm3 Height, (h) = 25 cm Formula used: The volume of the cylinder = π r2 h The curved surface area of the cylinder = 2 π r h Here, h and r is the height and radius respectively Calculation: Let the radius of the cylinder be r The volume of the cylinder = π r2 h ⇒ 15400 = 22/7 × r2 × 25 ⇒ r2 = 196 ⇒ r = 14 cm Now, Curved surface area of the cylinder = 2 π r h Curved surface area of the cylinder = 2 × 22/7 × 14 × 25 = 2200 ∴ The curved surface area of the cylinder is 2200 cm2

The volume of the cylinder is 15400 cm3 and its height is 25 cm then what is the curved surface area?1. 2100 cm22. 3300 cm23. 1100 cm24. 2200 cm2

Answer» Correct Answer - Option 4 : 2200 cm²

Given:

Volume = 15400 cm3

Height, (h) = 25 cm

Formula used:

The volume of the cylinder = π r2 h

The curved surface area of the cylinder = 2 π r h

Here, h and r is the height and radius respectively

Calculation:

Let the radius of the cylinder be r

The volume of the cylinder = π r2 h

⇒ 15400 = 22/7 × r2 × 25

⇒ r2 = 196

⇒ r = 14 cm

Now, Curved surface area of the cylinder = 2 π r h

Curved surface area of the cylinder = 2 × 22/7 × 14 × 25 = 2200

∴ The curved surface area of the cylinder is 2200 cm2

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