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lozanna [386]
3 years ago
14

What is the surface area of a cone when the slant height is 6 mm and the diameter is 4 mm?

Mathematics
1 answer:
Anna [14]3 years ago
8 0
Diameter of cone = d = 4mm
So,
Radius of cone = r = 2mm
Slant Height = l = 6mm
Surface Area = A = ? 

The formula for the surface area of cone is:

A= \pi r(r+l)

Using the values, we get:

A= \pi (2)(2+6)=16 \pi mm²

Therefore, the surface area of the cone with diameter 4mm and slant height of 6mm will be 16π mm²

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