11-7 Ratio of Areas
<ul><li>If the scale factor of two similar figures is a:b then: </li></ul><ul><ul><li>The ratio of the perimeter (circumfe...
Example <ul><li>The scale factor of two circles is 5:2.  The area of the small circle is 12 π .  What is the area of the b...
11-8 Geometric Probability
Probability <ul><li>1 – going to occur </li></ul><ul><li>0 – not going to occur </li></ul><ul><li>½ - 50% change of occurr...
How to calculate <ul><li>Length to be picked from </li></ul><ul><li>Whole length </li></ul><ul><li>Or  </li></ul><ul><li>A...
SPICSA <ul><li>Page 470 1-23 all </li></ul>
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11 7 Ratio Of Areas

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11 7 Ratio Of Areas

  1. 1. 11-7 Ratio of Areas
  2. 2. <ul><li>If the scale factor of two similar figures is a:b then: </li></ul><ul><ul><li>The ratio of the perimeter (circumference) is a:b </li></ul></ul><ul><ul><li>The ratio of the areas is a 2 :b 2 . </li></ul></ul>
  3. 3. Example <ul><li>The scale factor of two circles is 5:2. The area of the small circle is 12 π . What is the area of the big circle? </li></ul>
  4. 4. 11-8 Geometric Probability
  5. 5. Probability <ul><li>1 – going to occur </li></ul><ul><li>0 – not going to occur </li></ul><ul><li>½ - 50% change of occurring </li></ul>
  6. 6. How to calculate <ul><li>Length to be picked from </li></ul><ul><li>Whole length </li></ul><ul><li>Or </li></ul><ul><li>Area to be picked from </li></ul><ul><li>Whole area </li></ul>
  7. 7. SPICSA <ul><li>Page 470 1-23 all </li></ul>
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