Math Problem Statement
Two figures are similar if they have the exact same shape and their corresponding sides are proportional. The corresponding side lengths of the two figures are related by a scale factor. A scale factor is the constant number you can multiply any side length in one figure by to find the corresponding side length of the similar figure. Figure A 5 yd. horizontal 4 yd. vertical Figure B 15 yd. horizontal 12 yd. vertical In this problem, you will verify that the two rectangles are similar and find the scale factor from each figure to the other. Since rectangles have two sets of equal parallel sides, we will only need to find the ratios for two sets of sides; the horizontal and vertical lengths. If these ratios are equal, the rectangles are similar.
Note: In some cases, the simplified and unsimplifed ratios may be equal. Find the ratio:
Unsimplified:
Simplified:
Find the ratio:
Unsimplified:
Simplified:
Find the ratio:
Unsimplified:
Simplified:
Find the ratio:
Unsimplified:
Simplified:
To scale Figure A to the size of Figure B, multiply the length of each side of Figure A by the scale factor of
To scale Figure B to the size of Figure A, multiply the length of each side of Figure B by the scale factor of
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Similarity of Figures
Ratios
Proportions
Scale Factor
Formulas
Ratio = side of Figure A / side of Figure B
Scale Factor = side of one figure / corresponding side of another figure
Theorems
Similarity Theorem for Rectangles
Suitable Grade Level
Grades 6-8