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Midzak Acc. Geometry Name: ________________________ Period/Date: ___________________ Review, Sections 7.1-7.3 Ratios, Proportions, Similar Polygons Express each ratio in simplest form. 20 2m 1. 2. 45 7 mn 4. x 5 3( x 5) 7. 9 :15 Complete each statement. a 4 10. If , then 7a ? 6 7 13. If 5: x 9: 3 , then 9x ? Find the value of x. x 3 16. 20 5 5. 2(a 7) 6a 42 8. 60cm : 2m 15n 2 3. 40n 6. 8cm 2m 9. 4ab b2 11. If b d e , then ? c e d 12. If x x c , then ? c 7 9 14. If a b a 8 , then ? 8 12 8 15. If x3 x 3 , then ? 9 5 4 17. 7 3x 2 5 18. x2 1 3 4 19. x4 1 x4 3 20. 4 3 2x 5 x 7 21. x x5 x2 x 22. x 9 8 12 23. x2 x6 2 4 24. x 12 5 x 8 25. The measures of two supplementary angles are in the ratio of 5:13. Find the measure of each angle. 26. If ABC ~ RST , mA 45 and mC 60 , then mR ____, mT _____, mS ______ . MNOP~ M’N’O’P’ O N 18 x O’ 28 P N’ 27 M 24 y 15 27. The scale factor of MNOP to M’N’O’P’ is _________. 28. The value of x= __________ M’ z P’ 29. The value of y = ___________ 30. The value of z = __________. The quadrilaterals shown are similar. 8 6 10 31. The scale factor of the smaller quadrilateral to the larger quadrilateral is _________. z 32. x = __________ y x 18 9 33. y = __________ 34. z = ____________. 35. The measures of the angles of a hexagon are in the ratio 5:5:5:6:7:8. Find the measures.