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the right? Round to the nearest tenth. Find the area of each figure. Round to the nearest tenth if necessary. 1. 2. 3. What is the area of the figure at the right? Round to the nearest tenth. Course 2, Lesson 8-4

ANSWERS 1. 45 cm² 2. 67 mi² 3. 85.7 in² Course 2, Lesson 8-4

HOW do measurements help you describe real-world objects? Geometry HOW do measurements help you describe real-world objects? Course 2, Lesson 8-4

Mathematical Practices Geometry 7.G.6 Solve real-world and mathematical problems involving area, volume and surface area of two- and three-dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms. Mathematical Practices 1 Make sense of problems and persevere in solving them. 2 Reason abstractly and quantitatively. 3 Construct viable arguments and critique the reasoning of others. 4 Model with mathematics. Course 2, Lesson 8-4 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

To find the volume of rectangular prism Geometry To find the volume of rectangular prism To find the volume of a triangular prism Course 2, Lesson 8-4

Geometry volume Course 2, Lesson 8-4

Volume of a Rectangular Prism Geometry Volume of a Rectangular Prism Words The volume V of a rectangular prism is the product of the length , the width w, and the height h. It is also the area of the base B times the height h. Symbols V = wh or V = Bh Model Course 2, Lesson 8-4

Volume of a Triangular Prism Geometry Volume of a Triangular Prism Words The volume V of a triangular Model prism is the area of the base B times the height h. Symbols V = Bh, where B is the area of the base. Course 2, Lesson 8-4

How did what you learned today help you answer the Geometry How did what you learned today help you answer the HOW do measurements help you describe real-world objects? Course 2, Lesson 8-4

How did what you learned today help you answer the Geometry How did what you learned today help you answer the HOW do measurements help you describe real-world objects? Sample answers: To find the amount a rectangular-shaped box can hold To find the amount a triangular-shaped box can hold Course 2, Lesson 8-4

Geometry Functions Ratios and Proportional Relationships Measure and find the volume of a rectangular or triangular prism found in your classroom. Course 2, Lesson 8-4