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SSS OR SAS OR NEITHER/not enough information for all 3 triangles

SSS OR SAS OR NEITHER/not enough information for all 3 triangles-example-1
User Roolebo
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1 Answer

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In the first triangles, the three sides of each triangle are congruent with the three sides of the other triangle, then they are congruent by the SSS postulate.

In the second triangles, the congruent angle is not placed between the congruent sides, and we don't know whether the three sides of each triangle are congruent or not. Then, the correct choice is NEITHER/not enough information.

In the third triangles, angles ACB and ECD are congruent because they are vertical angles, then the SAS postulate is satisfied.

User Deniz
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