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The circumference of the hub cap of a tire is 75.74 centimeters. Find the area of this hub cap. Use 3.14 for PI. Use pencil and paper. If the circumference of the hub cap were smaller, explain how this would change the area of the hub cap. ​

User MDC
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2 Answers

3 votes

Answer:

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Explanation:

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User Sgtdck
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1 vote

Answer:

456.73 cm²

Explanation:

Area of a circle = πr²

The radius of the hub cap

= 75.74÷3.14÷2

= 12.06 cm (rounded to the nearest hundredth)

The area of the hub cap

= 3.14 × 12.06²

= 456.7314968152...

= 456.73 cm² (rounded to the nearest hundredth)

Circumference means the perimeter of a circle. So if the perimeter of a shape is smaller, it makes the shape turn out to be smaller.

So the area of the hub cap will be smaller.

User Pete Hodgson
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