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mr_godi [17]
3 years ago
11

I WILL GIVE BRAINLIEST

Mathematics
2 answers:
kati45 [8]3 years ago
8 0

Answer:

the answer is

BC = EF

Let BC = EF = x

AC = AB + BC....................... 1

AC = AB + x ............... 2

From equation 2, AB = AC - x ................. 3

Substitute equation 3 into 1:

AC = AB + BC

AC = AC-x + BC

AC-AC = -c + BC

0 = -x + BC

BC = x

Since AC is greater than AB by a value of x, hence AC > BC

alexandr1967 [171]3 years ago
3 0

According to the question, we are to complete a 2-column proof to show that the measure of BC is equal to EF:

Given the following:

  • BC = EF
  • Let BC = EF = x

AC = AB + BC....................... 1

AC = AB + x ............... 2

From equation 2, AB = AC - x ................. 3

Substitute equation 3 into 1:

AC = AB + BC

AC = AC-x + BC

AC-AC = -c + BC

0 = -x + BC

BC = x

Since AC is greater than AB by a value of x, hence AC > BC

Learn more on two-column proof here: brainly.com/question/1788884

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