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9-7:Congruent and Similar Figures

9-7:Congruent and Similar Figures. Congruent Figures. Similar Figures. Congruent Figures. Start page. 1. Which of these figures are congruent to the yellow one?. 1. 4. 3. 2. 5. 7. 8. 6. Hints. Answers. Start page.

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9-7:Congruent and Similar Figures

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  1. 9-7:Congruent and Similar Figures Congruent Figures Similar Figures

  2. Congruent Figures

  3. Start page 1. Which of these figures are congruent to the yellow one? 1 4 3 2 5 7 8 6 Hints Answers

  4. Start page Congruentfigures are all shown in yellow – were you right? 1 4 3 2 5 7 8 6

  5. Start page What makes a pair of figures “congruent”? • Congruent figures have the same size and shape. • They have corresponding sides that are congruent. • Can be rotated or a mirror image • A cut-out of one shape will always fit exactly over the other Click the green box if you want to go back to the first “congruent shapes” question page. Question page

  6. Start page 2. Which of these figures are congruent to the yellow one? 1 4 2 3 8 5 6 9 7 Answers

  7. Start page 4 3 8 6 9 7 Congruentfigures are all shown in yellow – were you right? 1 2 5

  8. Similar Figures

  9. Start page Which of these figures are similar to the yellow one? 1 4 3 2 5 7 8 6 Hints Answers

  10. Start page Similarfigures are all shown in yellow – were you right? 1 4 3 2 5 7 8 6

  11. Start page What makes a pair of figures “similar”? • Similar figures have the same shape but not necessarily the same size. • Same corresponding angles • They have corresponding sides that are proportional. • Can be rotated or reflected Question page

  12. Start page Using similarity Since figures are similar, their sides are in the same proportion => 9 = 3 12 4 9cm => 6 = 3 8 4 12cm 6cm 8 Equal Proportions - Similar Not Equal Proportion – NOT Similar

  13. Start page Which of these figures are similar to the yellow one?(They aren’t drawn to scale) 1 2 12 3 8 9 9 18 4 4 5 6 6 6 12 9 4.5 4 3 6 Answers

  14. Start page 1 2 12 3 8 9 18 4 4 5 6 6 12 9 4.5 4 3 6 Similarfigures are shown in yellow – were you right? 9 6

  15. Practice Time!P505 # 1-6

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