Answer:
288 x 3.14 :
cone with radius=12 height= 6
sphere with diameter= 12
cylinder with diameter= 8 height=18
972 x 3.14 :
cone with diameter=18 height=36
cylinder with diameter= 12 height=27
sphere with radius=9
Step-by-step explanation:
REMEMBER: radius is half of diameter. To find the radius, simply divide the diameter by 2. To find the diameter, multiply the radius by 2.
To find the volume of a:
Cone: V=1/3 x 3.14 r^2 h
REMEMBER: A cones volume is 1/3 of a cylinders volume with the same radius and height
Cylinder: V=3.14 r^2 h
Sphere: V=4/3 x 3.14 r^2 h
REMEMBER: Spheres have no height. To find the volume, we just need to know its radius. There's a relationship between the volume of a cylinder and sphere with the same radius. This relationship only exists is the cylinder and sphere have the same radius and the height is 2x the radius. If this holds true, the volume is 2/3 of the volume of the cylinder.
I hope this helps! If you need any more help on this, please let me know! Have a great day :)