Warm Up 1. Find the volume of a rectangular prism that is 4 in. tall, 16 in. wide, and 48 in deep. 2. A cylinder has a height of 4.2 m and a diameter of.

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Warm Up 1. Find the volume of a rectangular prism that is 4 in. tall, 16 in. wide, and 48 in deep. 2. A cylinder has a height of 4.2 m and a diameter of 0.6 m. To the nearest tenth of a cubic meter, what is the volume of the cylinder? Use 3.14 for . 3. A triangular prism’s base is an equilateral triangle. The sides of the equilateral triangle are 4 ft, and the height of the prism is 8 ft. To the nearest cubic foot, what is the volume of the prism? 3072 in m ft 3 Course Volume of Pyramids and Cones

Problem of the Day A ream of paper (500 sheets) forms a rectangular prism 11 in. by 8.5 in. by 2 in. What is the volume of one sheet of paper? in 3 Course Volume of Pyramids and Cones

Learn to find the volume of pyramids and cones. Course Volume of Pyramids and Cones TB P

Vocabulary pyramid cone Insert Lesson Title Here Course Volume of Pyramids and Cones

Insert Lesson Title Here Course Volume of Pyramids and Cones A pyramid is a three-dimensional figure whose base is a polygon, and all of the other faces are triangles. It is named for the shape of its base. A cone has a circular base. The height of a pyramid or cone is measured from the highest point to the base along a perpendicular line.

Course Volume of Pyramids and Cones VOLUME OF PYRAMIDS AND CONES (2 2 )

Course Volume of Pyramids and Cones Additional Example 1A: Finding the Volume of Pyramids and Cones Find the volume of the figure. Use 3.14 for  V = 14 6 V = 28 cm 3 V = Bh 1313 B = (4 7) = 14 cm

Course Volume of Pyramids and Cones Additional Example 1B: Finding the Volume of Pyramids and Cones 1313 V = 9 10 V = 30  94.2 in 3 V = Bh 1313 B = (3 2 ) = 9 in 2 Use 3.14 for . Find the volume of the figure. Use 3.14 for .

Course Volume of Pyramids and Cones Additional Example 2: Exploring the Effects of Changing Dimensions A cone has a radius of 3 ft. and a height of 4 ft. Explain whether tripling the height would have the same effect on the volume of the cone as tripling the radius. When the height of the cone is tripled, the volume is tripled. When the radius is tripled, the volume becomes 9 times the original volume.

Course Volume of Pyramids and Cones Additional Example 3: Social Studies Application The Pyramid of Kukulcán in Mexico is a square pyramid. Its height is 24 m and its base has 55 m sides. Find the volume of the pyramid. B = 55 2 = 3025 m V = (3025)(24) V = 24,200 m 3 A = bh V = Bh 1313 A lowercase b is used to represent the length of the base of a two-dimensional figure. A capitol B is used to represent the area of the base of a solid figure. Caution!

Course Volume of Pyramids and Cones Additional Example 4: Using a Calculator to Find Volume Use a calculator to find the volume of a cone to the nearest cubic centimeter if the radius of the base is 15 cm and the height is 64 cm. Use the pi button on your calculator to find the area of the base. 2ND ^  X2X2 ENTER Next, with the area of the base still displayed, find the volume of the cone.  15  64  () 13 ÷ ENTER The volume of the cone is approximately 15,080 cm 3. B = r 2 V = Bh 1313

Lesson Quiz: Part 1 Find the volume of each figure to the nearest tenth. Use 3.14 for  in m 3 Insert Lesson Title Here Course Volume of Pyramids and Cones 1. the triangular pyramid 2. the cone

Lesson Quiz: Part 2 Find the volume of each figure to the nearest tenth. Use 3.14 for . Yes; the volume is one-third the product of the base area and the height. So if you triple the height, the product would be tripled. Insert Lesson Title Here Course Volume of Pyramids and Cones 3. Explain whether tripling the height of a square pyramid would triple the volume.