Question
Which of the following formulas correctly calculates the surface area of a cone?(1 point)
Responses
2πrl+2πr2
2 pi r l plus 2 pi r squared
πrl+πr2
pi r l plus pi r squared
2πrl+πr2
2 pi r l plus pi r squared
πrl+2πr2
Responses
2πrl+2πr2
2 pi r l plus 2 pi r squared
πrl+πr2
pi r l plus pi r squared
2πrl+πr2
2 pi r l plus pi r squared
πrl+2πr2
Answers
GPT-4o mini
The correct formula for the surface area of a cone is:
**πrl + πr²**
where:
- \( r \) is the radius of the base of the cone,
- \( l \) is the slant height of the cone.
So the answer is:
**πrl + πr²** (pi r l plus pi r squared).
**πrl + πr²**
where:
- \( r \) is the radius of the base of the cone,
- \( l \) is the slant height of the cone.
So the answer is:
**πrl + πr²** (pi r l plus pi r squared).