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a b c d ab = cd 9 2 6 x x = 3 3 2 12 x x = 8 3 26 x x = 1 Example 1:

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Presentation on theme: "a b c d ab = cd 9 2 6 x x = 3 3 2 12 x x = 8 3 26 x x = 1 Example 1:"— Presentation transcript:

1

2 a b c d ab = cd

3 9 2 6 x x = x x = x x = 1 Example 1:

4 Example 2: Find x x 3x 2x 3x = x 2 = 96 x 2 = 16 x = 4

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6 EAB C D EA EB = EC ED

7 E A B C D x 7(7 + 13) 4(4 + x) = Example 3: 140 = x 124 = 4x x = 31

8 E A B C D x 6(6 + 8) 5(5 + x) = Example 4: 84 = x 59 = 5x x = 11.8

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10 Tangent Segment Secant Segment External Segment Notice that on the tangent segment, the outside is the whole!

11 E A B C EA 2 = EB EC

12 E A B C x 24 2 =12 (12 + x) 576 = x x = 36 Example 5:

13 E A B C 15 5 x x2x2 =5 (5 + 15) x 2 = 100 x = 10 Example 6:

14 What you should know by now… Given two chords, USE Given two secants OR a tangent and a secant, USE


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