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Stretching & Shrinking 2.3
Stretching and Shrinking
Answers Investigation 1 In some sense the two measurement b. Take a small unit of length or angle spread and find how many copies of that unit will fit into the segment or larger angle to be measured. Both students have given reasonable answers. Click your Connected Mathematics: Grade 7 textbook below for homework help. Our answers explain actual Connected Mathematics: Grade 7 textbook. Answers Investigation 3 Applications 1.
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In Stretching and Shrinking , your child will learn the mathematical meaning of similarity, explore the properties of similar figures, and use similarity to solve problems. Your student will learn how to:. When your child encounters a new problem, it is a good idea to ask questions such as:. Your student will learn how to: Identify similar figures by comparing corresponding sides and angles Use scale factors and ratios to describe relationships among the side lengths, perimeters, and areas of similar figures Construct similar figures scale drawings using informal methods, scale factors, and geometric tools Use algebraic rules to produce similar figures and recognize when a rule shrinks or enlarges a figure Predict the ways that stretching or shrinking a figure will affect side lengths, angle measures, perimeters, and areas Use the properties of similarity to find distances and heights that cannot be measured directly Use scale factors or ratios to find missing side lengths in a pair of similar figures When your child encounters a new problem, it is a good idea to ask questions such as: What determines whether two shapes are similar? What is the same and what is different about two similar figures? When figures are similar, how are the side lengths, areas, and scale factors related? How can I use similar figures to find missing measurements?
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