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Andreyy89
3 years ago
12

A circular plate has circumference 21.4 inches. What is the area of this​ plate? Use 3.14 for pi. The area of this plate is abou

t nothing square inches.
Mathematics
1 answer:
kolezko [41]3 years ago
8 0

Answer: Area of circular plate is 36.5 square inches

Step-by-step explanation:

The formula for determining the circumference of a circle is expressed as

Circumference = 2πr

Where

r represents the radius of the circle.

π is a constant whose value is 3.14

From the information given,

Circumference of circular plate = 21.4 inches. Therefore

2 × 3.14 × r = 21.4

6.28r = 21.4

r = 21.4/6.28

r = 3.41 inches

The formula for determining the area of a circle is expressed as

Area = πr²

Area of circular plate = 3.14 × 3.41² = 36.5 square inches

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