## brittanyburton Group Title Find the volume of a cone with radius 30 in and slant height 50 in. A. 3769.91 in3 B. 3768 in3 C. 113040 in3 D. 37699.11 in3 one year ago one year ago

1. tjones89 Group Title

|dw:1350415817536:dw|

2. tjones89 Group Title

the volume of a cone is given by $V = \frac{ 1 }{ 3 }\pi r^2h$

3. tjones89 Group Title

r = 30 is given to us but h will need to be calculated using the pythagorean theorem

4. brittanyburton Group Title

so...what's the answer? I tried it and it doesn't give me the correct answer.

5. tjones89 Group Title

maybe you made a mistake in calculating h. using pythagorean theorem... $50^2 = h^2 + 30^2$ h should then equal $h = \sqrt{50^2 - 30^2}$

6. tjones89 Group Title

from here you just need to plug the numbers into a calculator

7. brittanyburton Group Title

I don't have a calculator -_-

8. tjones89 Group Title

programs -> accessories -> calculator