A travel mug is shaped like a cylinder. It is 9 centimeters long and 15 centimeters tall. Find its volume to the nearest tenth. Use 3.14 for pi

Question

littlebird · Answer

V=pir^2h

littlebird · Answer

r=9/2 so r^2=81/4 (I'm assuming by "long" you mean it has that diameter)
h=15
pi=3.14

anonymous · Answer

so you mean it would be 3.14*$$3.14*4.5\prime/2*15?$$

anonymous · Answer

@Littlebird

littlebird · Answer

pi+(4.5)^2+15=38.39

This only works if I was correct in assuming that 9 cm is the diameter.
The r stands for radius. Radius is half the diameter. That is why I was dividing 9 by 2 before I square it.