Mathematics
OpenStudy (anonymous):

how do you find volume of an oblique cone?

OpenStudy (anonymous):

if you know integration you can try that.

OpenStudy (anonymous):

lol - i don't know integration...

OpenStudy (anonymous):

OpenStudy (anonymous):

the formula for volume of an oblique cone is still the same if it were a right cone... volume = (1/3) (area of base) (height)

OpenStudy (anonymous):

how would you account for the tilt?

OpenStudy (anonymous):

so base times height times .33?

OpenStudy (anonymous):

i'm doing something wrong because my answer isnt anywhere close to my multiple choice answers

jimthompson5910 (jim_thompson5910):

What is the original problem?

OpenStudy (anonymous):

|dw:1338160583976:dw|

jimthompson5910 (jim_thompson5910):

what are the dimensions (ie radius and height)?

OpenStudy (anonymous):

base is 15 and height is 25

jimthompson5910 (jim_thompson5910):

15 is the radius or diameter?

OpenStudy (anonymous):

• 2,208.9 in3 • 1,472.6 in3 • 196.3 in3 • 4,417.9 in3 those are my options...

OpenStudy (anonymous):

jimthompson5910 (jim_thompson5910):

alright, thank you

jimthompson5910 (jim_thompson5910):

one moment

jimthompson5910 (jim_thompson5910):

hmm not getting the correct answer if 15 is the radius, so it has to be the diameter, one more sec

OpenStudy (anonymous):

you're correct jim... 15 is the diameter so 7.5 is the radius.

jimthompson5910 (jim_thompson5910):

Area of base: A = pi*r^2 A = pi*7.5^2 A = pi*56.25 A = 56.25pi A = 56.25(3.14159) A = 176.7144375 So the area of the base (the circle) is approximately 176.7144375 sq inches ---------------------------------------- Volume of any cone V = (Area of base*Height)/3 V = (176.7144375*25)/3 V = 4417.8609375/3 V = 1472.6203125 So the volume is approximately 1472.6203125 cubic inches.

jimthompson5910 (jim_thompson5910):

Note: Due to round off error and how accurate you make pi, the answer will vary slightly.

OpenStudy (anonymous):

i see. basically i was trying to figure it out while forgetting that the bottom was a circle. thank you so much

jimthompson5910 (jim_thompson5910):

sure thing