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Question
Which congruence criterion do you use in the following?
Given AC=DF, AB=DE, BC=EF, so ΔABC≅ΔDEF.
Given AC=DF, AB=DE, BC=EF, so ΔABC≅ΔDEF.
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Solution
By SSS congruence criterion, since it is given that AC=DF, AB=DE, BC=EF. The three sides of one triangle are equal to the three corresponding sides of another triangle.
Therefore, ΔABC≅ΔDEF.
since it is given that
AC=DF,
AB=DE,
BC=EF.
The three sides of one triangle are equal to the three corresponding sides of another triangle.
Therefore,
Therefore,
ΔABC≅ΔDEF.
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