Math, asked by yana2009, 10 hours ago

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Answered by Tia321
1

Answer:

By SSS congruency

Step-by-step explanation:

In △ABD and △FEC,

AB = FE [Given, AB = 5cm = EF]

AD = FC [Given, AD = 10.5cm = FC]

BD = EC [Given, BC = DE. Now adding CD on both the sides gives BD = EC]

Therefore △ABD ≅ △FEC by SSS congruency.

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