Question

find the height of a cylindrical whose diameter is 42cm and the area of its curved surface is 11,880sq.cm​

Answer 1

Step-by-step explanation:

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Answer:

Diameter = 42, Height = 10

Radius (r) = 42/2 = 21

Curved Area of Cylinder = 2πrh = 2 × (22/7) × 21 × 10

= 1320 sq cm

Total Surface Area = 2πrh + 2πr²

= 1320 + [2 × (22/7) × 21²]

= 1320 + 2772

=4092 sq cm

THANKYOU

Answer 2

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Diameter = 42, Height = 10

Radius (r) = 42/2 = 21

Curved Area of Cylinder = 2πrh = 2 × (22/7) × 21 × 10

= 1320 sq cm

Total Surface Area = 2πrh + 2πr²

= 1320 + [2 × (22/7) × 21²]

= 1320 + 2772

=4092 sq cm

Thanks!❤