Back to Know the formulas for the volumes of cones, cylinders, and spheres — Problem 2 · Task Set 77

8.G.C.9 Tutor Intake -- Volume Formulas for Cylinders, Cones, and Spheres

This short check helps your tutor see where to start. Work on your own,
with a calculator, leaving answers in terms of pi unless told otherwise.
Do your best -- the goal is to find what to work on together, not to
grade you.

Grade 8·5 problems·~7 min·Common Core Math - Grade 8·container·8-g-c-9

Work through problems with immediate feedback

Procedures

A cone has radius 5 cm and height 12 cm. Which expression gives
its volume?

(1/3) x pi x 5^2 x 12 = 100pi

pi x 5^2 x 12 = 300pi (same as a cylinder with these dimensions)

(1/2) x pi x 5^2 x 12 = 150pi

pi x 5 x 12 = 60pi