Question

Can someone help me?

Answer 1

i can t see the link a you copy and past and post

Answer 2

Ok, one sec.

Answer 3

A cone has a diameter of 16 in. and a slant height of 17 in.

What is the approximate volume of the cone? Use 3.14 to approximate the value of straight pi. Round your answer to the nearest tenth, if necessary. (Hint: V =1/3 pi r squared h



A.
1004.8 in3

B.
1138.8 in3

C.
1259.3 in3

D.
4019.2 in3

Answer 4

i think it D

Answer 5

@cvliboi Can you help me on this?

Answer 6

diameter = 16
so what will be radius = r = .. ?

Answer 7

Wouldn't I just have to divide 16 by two? Wouldn't the radius be 8?

Answer 8

yesss

r= 8
h =17
you have the formula,
just plug the values in!

Answer 9

just a sec, its slant height l = 17
we need to find the value of 'h' using pythagoras theorem first :)

Answer 10

do you know pythagoras theorem ?

Answer 11

Yeah

Answer 12

so can you tell me the value of h ?

Answer 13

I'm confused. If we're talking about the Pythagoras Theorem, shouldn't I so 17*17 and 8*8? If so, then 17*17=289 and 8*8=64 and then added together it would be 353...

Answer 14

the hypotenuse is 17 :)

so 17^2 = 8^2 + h^2

so to get h^2, you'll infact subtract those 2 values, not add them

Answer 15

Oh, so then it would be 289-64=225?

Answer 16

thats right :)
h^2 = 225
so h= .. ?

Answer 17

50625

Answer 18

Wait...I don't think I did that right..

Answer 19

h = 225
h = sqrt 225 = ... ?

Answer 20

15

Answer 21

correct!
h = 15
r = 8
just plug these in the formula given :)