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AlladinOne [14]
3 years ago
6

Given: In triangle ABC, ∠B ≅ ∠C Prove: AB ≅ AC Complete the paragraph proof. We are given that ∠B ≅ ∠C. Assume segment AB is not

congruent to . If AB > AC, then m∠C > m∠B by the . If AB < AC, then m∠C < m∠B by the converse of the triangle parts relationship theorem. But by the definition of congruent, we know the measure of angle B equals the measure of by the given statement. Therefore, we have a contradiction: AB = AC, and AB ≅ AC.

Mathematics
2 answers:
ELEN [110]3 years ago
4 0

Answer:    

Given: Here ABC is a triangle,

In which \angle B \cong \angle C

Prove: AB \cong AC

Let us assume AB is not congruent to AC.

If AB > AC,

Then m\angle C > m\angle B ( By the converse of the triangle parts relationship theorem )

If  If AB < AC, then m\angle C < m\angle B  ( by the converse of the triangle parts relationship theorem. )

But, by the definition of congruent,

We know \angle B \cong \angle C ( by the given statement.)

Therefore, we have a contradiction,

And, AB \cong AC  and AB = AC.


sineoko [7]3 years ago
4 0

Answer:

AB ≅ AC

Step-by-step explanation:

Given information: In triangle ABC, ∠B ≅ ∠C.

To prove: AB ≅ AC

Let us assume side AB is not congruent to side AC.

If AB > AC, then ∠B < ∠C ( By the converse of the triangle parts relationship theorem ).

If AB < AC, then ∠B > ∠C ( By the converse of the triangle parts relationship theorem ).

It is given that ∠B ≅ ∠C, so by the definition of congruent segment.

\angle B=\angle C

Therefore, we have a contradiction:

AB = AC

By the definition of congruent segment.

AB ≅ AC

Hence proved.

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