# 8.4.3. Isosceles Triangle Theorems

Find .

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• D
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Find .

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• D
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In the following figure, find .

• A
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• D
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Find and .

• A,
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• C,
• D,
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Find and .

• A,
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• D,
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Find and .

• A,
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• D,
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Find .

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• D
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In the following figure, find and .

• A,
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• D,
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In the figure below, determine the sides of the triangle that are equal in length.

• A
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• C
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In the figure below, determine the sides of the triangle that are equal in length.

• A,
• B,
• C,
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Determine the triangle's sides that are equal in length.

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• C
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Identify the triangle's sides that are equal in length.

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Using the givens on the figure, determine the triangle's sides that are equal in length.

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Given that , , , and , find .

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In the figure below, determine all the sides that are equal in length.

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• C
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Is the triangle isosceles?

• Ayes
• Bno
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Find the perimeter of .

• Acm
• Bcm
• Ccm
• Dcm
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