Area of a Circle with Radius 12 (Answer: 452.3893)

Exact Answer

A = π × 12² = 452.3893

Area (πr²)

452.3893 (144π)

Circumference (2πr)

75.3982 (24π)

Diameter (2r)

Radius (r)

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Step-by-Step Solution: A = π × 12² = 452.3893

Step 1

Calculate the Area Using A = πr²

Square the radius (12² = 144) and multiply by π (≈ 3.14159265): 144 × π = 452.3893.

A = π × 12² = 144π ≈ 452.3893

Step 2

Calculate the Circumference Using C = 2πr

Multiply 2 × π × 12 = 24π ≈ 75.3982.

C = 2 × π × 12 ≈ 75.3982

Summary & Alternative Representations

Property / Format	Value
Area (πr²)	`452.3893 (144π)`
Circumference (2πr)	`75.3982 (24π)`
Diameter (2r)	`24`
Radius (r)	`12`

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Frequently Asked Questions

What is the circumference of a circle with radius 12?

The circumference is 2 × π × 12 ≈ 75.3982.