Question

Find the surface area of a cone with radius 14.2 inches and slant height 24.1 inches.
Answers
975.69
1708.59 in^2
1276.76
1119.73

Answer 1

1708.59 in^2 ??

Answer 2

well the base of a cone is a circle, which area is pi*r^2

and the side of the cone has an area of pi * r * slant

so the total area of the cone is \[SA = pir^2+\pi rs\]

where s = 24.1 and r = 14.2

Answer 3

@austinL we're finding the surface area, not volume.

Answer 4

pi (14.2^2) + pi (14.2) (24.1)

Answer 5

@glitterythings yes

Answer 6

so then I got it right then ? :o

Answer 7

looks right to me

Answer 8

ty !