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19-11-2020
Mathematics

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What is the value of x?

x =

What is the value of x x class=

Respuesta :

jimrgrant1 jimrgrant1

19-11-2020

Answer:

x = 23

Step-by-step explanation:

Δ ABC and Δ DEF are congruent by the SAS postulate, thus corresponding sides are congruent, that is

BC = EF, substitute values

x - 4 = 19 ( add 4 to both sides )

x = 23

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