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Isosceles and Equilateral Triangles

Isosceles and Equilateral Triangles. Section 4.6 Objective: Use properties of isosceles triangles. Theorem 4.10 Isosceles Triangle Theorem. Theorem 4.11 Converse of Isosceles Triangle Theorem. Example 1. Example 2. Find m <SRT. Example 3. Find x and y. Example 4. Find x. Example 5.

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Isosceles and Equilateral Triangles

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  1. Isosceles and Equilateral Triangles Section 4.6 Objective: Use properties of isosceles triangles.

  2. Theorem 4.10Isosceles Triangle Theorem

  3. Theorem 4.11Converse of Isosceles Triangle Theorem

  4. Example 1

  5. Example 2 Find m <SRT

  6. Example 3 Find x and y.

  7. Example 4 Find x.

  8. Example 5 Find x and y.

  9. Example 6 • < Z • YZ

  10. Example 7 Find x and y.

  11. Example 8 In the figure AC BC and CD BD. • If m <ACB = 100, find the m <BDC. • If m <BAC = 30, find the m <BDC.

  12. Example 9 ΔKLN and ΔLMN are isosceles and m <JKN = 100. Find each measure. • m < LNM • m <M • m <LKN • m <J

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