Volume Day 2

Materials needed:

Write out and label the formulas for finding the Volume of a cylinder and a cone from yesterday

Bellwork:

February 22nd

• Computer-Test25/student

• Bellwork folder

• Calculator

Goals:

Todays Agenda:

1. I can tell what the formulas are for finding the volume of a cylinder and a cone are

2. I can find the height or radius given volume.

1. Bellwork

2. Lesson

3. Our exit ticket is built within the lesson :)

We will start off our lesson with a few recap questions from yesterday

Multiple Choice

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Multiple Choice

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Finding our radius or height given the volume

​Example #1

​Example #2

Multiple Choice

Jason is drinking a soda from a can that has a radius of 5 in and a height of 43 in. How much soda is in the can? Leave the answer in terms of π.

• 1075π

• 268.75π

• 430π

• 806.25π

​Example #3

​Example #4

Multiple Choice

Calculate the amount of ice cream this cone can hold (just to the top of the cone). Round to the nearest hundredth.

***Remember to take half of the diameter to get the radius.***

• 58.29 cm²

• 58.29 cm³

• 233.15 cm²

• 233.15 cm³

​Example #5

​Example #6

​Example #7

​Example #8

Multiple Choice

$$V_{total}=V_{cone}+V_{cylinder}$$  V = ? $$V_{total}=\frac{\pi r^2h}{3}+\pi r^2h$$  Remember there are 2 different heights.

• 1,356 m³

• 1,734 m³

• 377 m³

• 590 m³