Transcript
Page 1: Volume of Pyramids, Cones & Spheres Return to table of contents

Volume of Pyramids, Cones & Spheres

Return to table of contents

Page 2: Volume of Pyramids, Cones & Spheres Return to table of contents

Given the same diameter and height for each figure, drag them to arrange in order of smallest to largest volume.

How many filled cones do you think it would take to fill the cylinder?

How many filled spheres do you think it would take to fill the cylinder?

Page 3: Volume of Pyramids, Cones & Spheres Return to table of contents

Demonstration comparing volume of Cones & Spheres with volume of Cylinders

click to go to web site

Page 4: Volume of Pyramids, Cones & Spheres Return to table of contents

Volume of a Cone

(Area of Base x Height) 3

(Area of Base x Height) 1 3

click to reveal

A cone is 1/3 the volume of a cylinder with the same base area (B) and height (h).

Page 5: Volume of Pyramids, Cones & Spheres Return to table of contents

V = 2/3 (Volume of Cylinder)

r2 h)2/3 (V =

or

V = 4/3 r3

Volume of a Sphere

click to reveal

A sphere is 2/3 the volume of a cylinder with the same base area (B) and height (h).

Page 6: Volume of Pyramids, Cones & Spheres Return to table of contents

How much ice cream can a Friendly’s Waffle cone hold if it has a diameter of 6 in and its height is 10 in?

(Just Ice Cream within Cone. Not on Top)

Page 7: Volume of Pyramids, Cones & Spheres Return to table of contents

23 Find the volume.

4 in

9 in

Page 8: Volume of Pyramids, Cones & Spheres Return to table of contents

24 Find the Volume

5 cm8 cm

Page 9: Volume of Pyramids, Cones & Spheres Return to table of contents

If the radius of a sphere is 5.5 cm, what is its volume?

Page 10: Volume of Pyramids, Cones & Spheres Return to table of contents

25 What is the volume of a sphere with a radius of 8 ft?

Page 11: Volume of Pyramids, Cones & Spheres Return to table of contents

26 What is the volume of a sphere with a diameter of 4.25 in?

Page 12: Volume of Pyramids, Cones & Spheres Return to table of contents

Volume of a Pyramid

(Area of Base x Height) 3

(Area of Base x Height) 1 3click to reveal

A pyramid is 1/3 the volume of a prism with the same base area (B) and height (h).

Page 13: Volume of Pyramids, Cones & Spheres Return to table of contents

Pyramids are named by the shape of their base..

The volume is a pyramid is 1/3 the volume of a prism with the same base area(B) and height (h).

V = Bh13

=5 m

side length = 4 m

V = Bh13

Page 14: Volume of Pyramids, Cones & Spheres Return to table of contents

27 Find the Volume of a triangular pyramid with base edges of 8 in, base height of 4 in and a pyramid height of 10 in.

8 in

10 in

4 in

Page 15: Volume of Pyramids, Cones & Spheres Return to table of contents

28 Find the volume.

8 cm

7 cm

15.3 cm


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