Area of a Circle with Radius 7 (Answer: 153.938)

Exact Answer

A = π × 7² = 153.938

Area (πr²)

153.938 (49π)

Circumference (2πr)

43.9823 (14π)

Diameter (2r)

Radius (r)

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Step-by-Step Solution: A = π × 7² = 153.938

Step 1

Calculate the Area Using A = πr²

Square the radius (7² = 49) and multiply by π (≈ 3.14159265): 49 × π = 153.938.

A = π × 7² = 49π ≈ 153.938

Step 2

Calculate the Circumference Using C = 2πr

Multiply 2 × π × 7 = 14π ≈ 43.9823.

C = 2 × π × 7 ≈ 43.9823

Summary & Alternative Representations

Property / Format	Value
Area (πr²)	`153.938 (49π)`
Circumference (2πr)	`43.9823 (14π)`
Diameter (2r)	`14`
Radius (r)	`7`

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Frequently Asked Questions

What is the circumference of a circle with radius 7?

The circumference is 2 × π × 7 ≈ 43.9823.