Question
Which of the following formulas correctly calculates the surface area of a cone?
Answers
Answered by
GPT-4o mini
The surface area of a cone can be calculated using the following formula:
\[
\text{Surface Area} = \pi r (r + l)
\]
where:
- \( r \) is the radius of the base of the cone,
- \( l \) is the slant height of the cone.
The formula consists of two parts: the base area (\( \pi r^2 \)) plus the lateral surface area (\( \pi r l \)), resulting in the full surface area being represented as \( \pi r (r + l) \).
\[
\text{Surface Area} = \pi r (r + l)
\]
where:
- \( r \) is the radius of the base of the cone,
- \( l \) is the slant height of the cone.
The formula consists of two parts: the base area (\( \pi r^2 \)) plus the lateral surface area (\( \pi r l \)), resulting in the full surface area being represented as \( \pi r (r + l) \).
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