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Geometry 20 Online
OpenStudy (anonymous):

medal and fan !!! A cone has a diameter of 6 centimeters and a height that is 3 times the diameter. Using 3.14 for pi, which of the following can be used to calculate the volume of the cone? A) 1/3 (3.14)(3cm)^2 (18cm) B)1/3 (3.14) (6cm)^2 (18cm) C) 1/3 (3.14) (18cm)^2 (3cm) D) 1/3 (3.14) (18cm)^2 (6cm)

imqwerty (imqwerty):

ht. of cone=3x18

imqwerty (imqwerty):

and radius= 1/2diameter = 3cm

imqwerty (imqwerty):

volume of come = (pi x r^2 x h)/3

imqwerty (imqwerty):

plug in the values of pi, r and h to get the answer :)

OpenStudy (anonymous):

first one is 54

imqwerty (imqwerty):

the 1st one is 169.56 i think u forgot to multiply pi :)

OpenStudy (anonymous):

ok

imqwerty (imqwerty):

the 1st one is the correct answer.

OpenStudy (anonymous):

ohhh okay thank you

imqwerty (imqwerty):

ur welcome :)

OpenStudy (anonymous):

actually thats what i was thinking was the answer but wasnt sure

imqwerty (imqwerty):

its good to clarify ur doubts (:

OpenStudy (anonymous):

yup thanks

imqwerty (imqwerty):

welcome (:

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