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Geometry Section 7-3 Similar Polygons Similar Polygons- Two polygons with corresponding angles congruent and corresponding sides proportional; ~ Examples: 1. 2. Quadrilateral ABCD ~ quadrilateral A’B’C’D’. a. Find their scale factor b. Find the values of x, y, and z c. Find the ratio of the perimeters Quadrilateral EFGH ~ quadrilateral E’F’G’H’. a. Find their scale factor b. Find the values of x, y, and z c. Find the ratio of the perimeters 3. Quadrilateral ABCD ~ A’B’C’D’. a. m<E = ___________ b. m<G = ___________ c. m<B = ___________ d. If m<D = 110, then m<H = ___________. e. The scale factor is ________. f. EH = _________ g. BC = _________ h. AB = _________ 4. Trapezoid ABCD is similar to trapezoid PQRS. List all the pairs of congruent angles and write ratios of the corresponding sides in a statement of proportionality. 5. Decide whether the figures are similar. If they are, write the similarity statement. a. b. 6. You have a photo 4 in. wide by 6 in. long that you want to reduce to fit in a frame that is 1.5 in. wide. How long will the reduced photo be? 7. Parallelogram ABCD is similar to parallelogram GBEF. Find the value of y. 8. UVW is similar to YXW. Find the value of a. Classroom Exercises: p. 250 1-10 HW: p. 250-252 2-26 even, Self-Test 1-15