Question

The surface area of the figure below is 37.70 m2.

Answer 1

true
false
http://static.k12.com/eli/bb/817/-1/0/2_36869_44974/-1/5c45df68fdad740c9f94d22ea5f92dd60c7a03f7/media/049a4950dd5ffafeb48a1a15814bc58b19e8aef1/mediaasset_651922_1.jpg

Answer 2

do you now the formula

Answer 3

A=πr(r+h2+r2)

Answer 4

plug that in to your cone and see what you get is true with the statement

Answer 5

whats the height tho?

Answer 6

@johnweldon1993

Answer 7

Wow that is a nasty looking formula up there

What I would use is

\[\large SA = \pi r l + \pi r^2\]

l = the slant height = 6 here
r = radius of the base = 2 here

Answer 8

I mean you CAN use your formula up there I guess...but you would need to calculate the height of the cone, which isnt that bad...just a simple application of pythagorea's

Answer 9

50.27

Answer 10

That's what I get too :)

Answer 11

thankss !

Answer 12

Of course!