Find the volume of the composite figure below. Leave your answer in terms of π.http://cdn.activelms.com/data/042c73b1-ddf5-4fd6-91e7-6c8434228f3d/Geometry%20Images/unit%2011-5%20q4.png
A. 1539π cm^3
B. 1215π cm^3
C. 891π cm^3
D. 4860π cm^3

Question

Find the volume of the composite figure below. Leave your answer in terms of π.http://cdn.activelms.com/data/042c73b1-ddf5-4fd6-91e7-6c8434228f3d/Geometry%20Images/unit%2011-5%20q4.png
A.  1539π cm^3
B.  1215π cm^3
C.  891π cm^3
 D.  4860π cm^3

welshfella · Answer

tis is a composite of a cylinder and a cone 
Vol cylinder = pi r^2 h
vol of a cone = (1/3) pi r^2 h

welshfella · Answer

r is the radius of the base of the cylinder  ( and is the same value for the cone)

h = 15 for the cylinder  and h = 2 for the cone

welshfella · Answer

so plug those values into the 2 formulae and then add those 2 results together

ellamoyseyuk · Answer

A)