# Over Lesson 12–3 A.A B.B C.C D.D 5-Minute Check 2 Find the volume of the cylinder.

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Over Lesson 12–3 A.A B.B C.C D.D 5-Minute Check 2 Find the volume of the cylinder.

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Then/Now You have already found the volumes of prisms. (Lessons 12–2 and 12–3) Find the volumes of pyramids

Concept A

Example 1 Volume of a Pyramid Find the volume of the pyramid. Formula for volume of a pyramid Answer: The volume is 900 cubic inches. The base is a square, so B = 15 ● 15. The height of the pyramid is 12 inches. Simplify.

Example 1 Volume of a Pyramid Find the volume of the pyramid. Formula for volume of a pyramid Answer: The volume is 280 cubic feet. The base is a rectangle, so B = 10 ● 12. The height of the pyramid is 7 feet. Simplify. 7 ft 10 ft 12 ft

Example 1 Volume of a Pyramid Find the volume of the pyramid. Formula for volume of a pyramid Answer: The volume is cubic feet. The base is a square, so B = 11 ● 11 The height of the pyramid is 8 meters. Simplify. 8 m 11 m

A.A B.B C.C D.D Example 1 CYP Answer.112 in 3 Find the volume of the pyramid.

A.A B.B C.C D.D Example 1 CYP Answer.420 ft 3 Find the volume of the pyramid. 14 ft 9 ft 10 ft

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