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djverab [1.8K]
3 years ago
9

Please answer and explanation

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
3 0

61.23 square inches of metal is needed to create a cylindrical can.

Solution:

Diameter of the base = 3 in

Radius of the base = 3 ÷ 2 = 1.5 in

Height of the cylinder = 5 in

The value of π = 3.14

<u>To find the surface area of the cylinder:</u>

Surface area of the cylinder = 2 \pi r^{2}+2 \pi r h

                                               = 2 × 3.14 × (1.5)² + 2 × 3.14 × 1.5 × 5

                                               = 14.13 + 47.1

Surface area of the cylinder = 61.23 sq. in

Hence 61.23 square inches of metal is needed to create a cylindrical can.

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diameter / 2 = radius

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We don't multiply by Pi because it is already included

Hope this helps

Step-by-step explanation:

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Step-by-step explanation:

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