Select all statements that are true about the triangles.

2021-10-29
a.Triangles ABCABC and BCDBCD are congruent by the Side-Side-Side Triangle Congruence Theorem.

b.Triangles ABCABC and DCBDCB are congruent by the Side-Angle-Side Triangle Congruence Theorem.

c.Triangles ABCABC and DCBDCB are congruent by the Side-Side-Side Triangle Congruence Theorem.

d.There is not enough information to determine if the triangles are congruent

e.Triangles ABCABC and DCBDCB are congruent by the Angle-Angle Triangle Congruence Theorem.

f.Triangles ABCABC and BCDBCD are congruent by the Angle-Side-Angle Triangle Congruence Theorem.

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Expert Answer

content_user
Answered 2021-11-02 Author has 2083 answers

Two triangles are said to be equal if all their three sides and all their three angles are exactly equal to each other.

Given triangle ABC and Triangle DCB, we can see that:

$$\angle$$A = $$\angle$$D, |AB| = |CD|, |AC| = |BD| and they share the same side BC. Hence:

a) By the side-side-side (SSS) triangle congruence theorem the two triangles are equal. i.e. |AB| = |CD|, |AC| = |BD| and they share the same side BC.

b) By the side-angle-side (SAS) triangle congruence theorem the two triangles are equal. i.e. |AB| = |CD|, |AC| = |BD| and $$\angle$$A = $$\angle$$D.

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