Question

Find the surface area of a cone with a slant height of 3.75 m and diameter of 4 m.
A. 94.25 m^2
B. 94.52 m^2
C. 36.13 m^2
D. 148.04 m^2

Answer 1

For solving this do you know the conception of : Mensuration

Answer 2

No, I've never heard of that before.

Answer 3

The easiest way would be to just substitute the values into the formulae.
Area of base = pi*(radius)^2
Surface area of cone (excluding base) = pi*(radius)*(slant height)
Total surface area is the sum of those two.

Answer 4

use this

Answer 5

Thank you for the suggestions.