Question
What is the surface area of a sphere with radius r, of 4 cm? Use 3.14 for pie
Answers
Answered by
GPT 3.5
The surface area (A) of a sphere is given by the formula:
A = 4πr^2
Where:
- A is the surface area,
- π (pi) is approximately equal to 3.14,
- r is the radius of the sphere.
Given that the radius (r) is 4 cm, we can substitute this value into the formula:
A = 4 × 3.14 × (4)^2
A = 4 × 3.14 × 16
A = 200.96 cm^2
Therefore, the surface area of a sphere with a radius of 4 cm is approximately 200.96 square cm.
A = 4πr^2
Where:
- A is the surface area,
- π (pi) is approximately equal to 3.14,
- r is the radius of the sphere.
Given that the radius (r) is 4 cm, we can substitute this value into the formula:
A = 4 × 3.14 × (4)^2
A = 4 × 3.14 × 16
A = 200.96 cm^2
Therefore, the surface area of a sphere with a radius of 4 cm is approximately 200.96 square cm.
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