What is the volume of a cone (in cubic inches) with a radius of 2 inches and a height of 3 inches?
12.56 cubic inches
25.12 cubic inches
37.68 cubic inches
56.52 cubic inches
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
The formula is \(\dfrac{1}{3}\) x r x h, where r is the radius, and h is the height.
OpenStudy (anonymous):
how do you do it though
OpenStudy (anonymous):
So can you figure out \(\dfrac{1}{3}\) x 2 x 3?
OpenStudy (campbell_st):
Actually the volume formula is
\[V = \frac{1}{3} \pi r^2 h\]
so substitute the values r = 2 and h = 3
the calculate the answer
OpenStudy (anonymous):
so is it 18?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Thanks. @campbell_st
OpenStudy (anonymous):
is it 18?
OpenStudy (anonymous):
?
OpenStudy (anonymous):
No...
OpenStudy (anonymous):
First, what is 2^2?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
4
OpenStudy (anonymous):
4 x 3
OpenStudy (anonymous):
12
OpenStudy (anonymous):
Then what is \(\dfrac{1}{3}\) x 12?
OpenStudy (anonymous):
144
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
?
OpenStudy (anonymous):
No...
OpenStudy (anonymous):
36
OpenStudy (anonymous):
1/3 is a fraction..
OpenStudy (anonymous):
i know but if you divide 1/3 it is 3
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
1/3 is about 0.333
OpenStudy (anonymous):
No, it's 0.333
OpenStudy (anonymous):
Approximately
OpenStudy (anonymous):
ok but i think that is wrong
OpenStudy (anonymous):
im not going to medal you until you tell me the right way!
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (campbell_st):
ok.... here is what you need to know
|dw:1423257159692:dw|