Question

Help please!!!

Answer 1

pi r^2 + pi* r * l = pi * 6^2 + pi * 6* 3 cm^2

Answer 2

you were confusing me

Answer 3

oh and i think it was D. 226 cm^2 right

Answer 4

http://www.mathsteacher.com.au/year10/ch14_measurement/18_cone/20cone.htm
use this formula ... it's a cone ... calculate it, should be less.

Answer 5

so it was D...right?

Answer 6

nope

Answer 7

http://math.about.com/od/formulas/ss/surfaceareavol_2.htm
here it gives you how to find the surface area, its more direct

but pretty much it is what experimentX said: you have all the lengths needed just plug in to the equation and you'll get your answer

Answer 8

Surface area = pi r^2 _+ pi r l
so: Surface area = pi (36)+pi (6)(3)=36pi + 18 pi= 54pi=169.6

Answer 9

oh thanks mertsj

Answer 10

so it was B

Answer 11

yw. Can't you multiply 54 times pi?

Answer 12

yeah i can multiply but i just hate geometry cause it confuse me

Answer 13

Multiplication is NOT geometry.