## brittanyburton 3 years ago 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

1. tjones89

|dw:1350415817536:dw|

2. tjones89

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

3. tjones89

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

4. brittanyburton

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

5. tjones89

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

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

7. brittanyburton

I don't have a calculator -_-

8. tjones89

programs -> accessories -> calculator