Which of the following formulas correctly calculates the surface area of a cone?(1 point)

Responses

πrl+πr2
pi r l plus pi r squared

2πrl+2πr2
2 pi r l plus 2 pi r squared

2πrl+πr2
2 pi r l plus pi r squared

πrl+2πr2

1 answer

The correct formula for the surface area of a cone is:

\(\pi r l + \pi r^2\)

Where:

  • \(r\) is the radius of the base,
  • \(l\) is the slant height of the cone.

Therefore, the correct response from your list is:

πrl + πr²