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Monday Math Madness. Why does a flamingo lift up one leg ? Why do birds fly south in the winter ? What's an insect's favorite sport?. Do Now. Divide 1.) 3.45 ÷ 1.5 2.) 4.22 ÷ 2 3 .) 150.27 ÷ 3 . 5 /12/ 2014 10-2 B Volume of Cylinders. Key Concept. Volume of a Cylinder.

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monday math madness
Monday Math Madness
  • Why does a flamingo lift up one leg?
  • Why do birds fly south in the winter?
  • What's an insect's favorite sport?
do now
Do Now

Divide

1.) 3.45 ÷ 1.5

2.) 4.22 ÷ 2

3.) 150.27 ÷ 3

volume of a cylinder
Volume of a Cylinder
  • Label the BASE and HEIGHT of the cylinder below:

Height of the Cylinder!

Base of the Cylinder!

example 1
Example 1

Find the volume of the cylinder. Use 3.14 for . Round to the nearest tenth.

V = r2h

V ≈ 3.14(4)2(5)

V ≈ 251.2

The volume is about 251.2 cubic centimeters.

example 2
Example 2

The cylinder-shaped vase has a height of 12 inches and a diameter of 4 inches. What is the volume of the vase? Use 3.14 for . Round to the nearest tenth.

slide8

V = r2h

V ≈ 3.14(2)2(12)

V ≈ 150.7

The vase has a volume of about 150.7 cubic inches.

slide9
Ex.3

Area of a Circle

V = Bh

= r2• h

= (8ft)2 • (9ft)

= 64ft2 • (9ft)

= 576ft3

= 1809.6ft3

16ft

9ft

homework
Homework
  • Pg. 609 #1 – 26 Evens
  • QUIZ WEDNESDAY!