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disa [49]
3 years ago
10

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

Mathematics
1 answer:
Brut [27]3 years ago
8 0

Answer:

The area of this plate is 36.31\ \text{inches}^2.

Step-by-step explanation:

We have,

Circumference of a circular plate, C = 21.4 inches

The circumference of a circular shape is given by :

C=2\pi r

r is radius of circular shape

r=\dfrac{C}{2\pi}\\\\r=\dfrac{21.4}{2\times 3.14}\\\\r=3.4\ \text{inches}

Area of this plate is given by :

A=\pi r^2\\\\A=\pi (3.4)^2\\\\A=36.31\ \text{inches}^2

So, the area of this plate is 36.31\ \text{inches}^2.

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algol13

Answer:

Step-by-step explanation:

Remark

The formula for this is

Heat = m * c * Δt

Givens

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Solution

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It's hard to get the correct number of sig digs because the 200 is not qualified in any way.

Part 2.

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2 years ago
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Answer:

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Step-by-step explanation:

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answer

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step my step explanation

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Answer:

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