Surface Area and Volume of Similar Figures Section 12.7.

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Surface Area and Volume of Similar Figures Section 12.7

Transcript of Surface Area and Volume of Similar Figures Section 12.7.

Page 1: Surface Area and Volume of Similar Figures Section 12.7.

Surface Area and Volume of Similar

FiguresSection 12.7

Page 2: Surface Area and Volume of Similar Figures Section 12.7.

DefinitionO A polyhedron is a solid that is

bounded by polygons.

Page 3: Surface Area and Volume of Similar Figures Section 12.7.

Tell whether each figure below is a polyhedron.

Page 4: Surface Area and Volume of Similar Figures Section 12.7.

DefinitionO Two solids of the same type with

equal ratios of corresponding linear measures, such as heights or radii, are called similar solids.

Page 5: Surface Area and Volume of Similar Figures Section 12.7.

Tell whether each given right rectangular prism is similar to

the right rectangular prism shown below.

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Similar Solids Theorem

O If two similar solids have a scale factor of a : b, then corresponding areas (and surface areas) have a ratio of a2 : b2 and corresponding volumes have a ratio of a3 : b3.

Page 7: Surface Area and Volume of Similar Figures Section 12.7.

The pyramids are similar. Pyramid P has a volume of 1000 cubic inches and Pyramid Q has a volume of 216 cubic inches. Find the

scales factor of Pyramid P to Pyramid Q.

Page 8: Surface Area and Volume of Similar Figures Section 12.7.

Solid I is similar to Solid II. Find the scale factor of Solid

I to Solid II.

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PracticeO p.850: 3-7, 12-15