The curved surface area of cylinder is 440 sq.cm. The height of cylind

1.	The curved surface area of cylinder is 440 sq.cm. The height of cylinder is 3 more than the radius of cylinder. The radius of cylinder is equal to the radius of circle. Find the circumference of a circle.1. 44cm2. 50cm3. 88cm4. 28cm5. 56cm
Answer» Correct Answer - Option 1 : 44cm Given: ⇒ Curved surface area of cylinder = 440 ⇒ 440 = 2πrh Then, ⇒ h = r + 3 Solving, ⇒ h = 10cm and r = 7cm ⇒ Radius of circle = 7cm ⇒ Circumference of a circle = 2π × radius = 2 × 22/7 × 7 = 44 cm ∴ Circumference of a circle is 44cm.

The curved surface area of cylinder is 440 sq.cm. The height of cylinder is 3 more than the radius of cylinder. The radius of cylinder is equal to the radius of circle. Find the circumference of a circle.1. 44cm2. 50cm3. 88cm4. 28cm5. 56cm

Answer» Correct Answer - Option 1 : 44cm

Given:

⇒ Curved surface area of cylinder = 440

⇒ 440 = 2πrh

Then,

⇒ h = r + 3

Solving,

⇒ h = 10cm and r = 7cm

⇒ Radius of circle = 7cm

⇒ Circumference of a circle = 2π × radius

= 2 × 22/7 × 7

= 44 cm

∴ Circumference of a circle is 44cm.

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The curved surface area of cylinder is 440 sq.cm. The height of cylinder is 3 more than the radius of cylinder. The radius of cylinder is equal to the radius of circle. Find the circumference of a circle.1. 44cm2. 50cm3. 88cm4. 28cm5. 56cm

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