congruence occurs if 3 sides in one triangle are congruent to 3 sides in another triangle.

Introductory Activity for congruency of trianglesDear Students, This vacation you will discover all about congruency by yourself!Two triangles are said to be congruent when the 3 sides and 3 angles of one triangle isexactly equal to the 3 sides and 3 angles of another triangle.If you observe the above triangles, the 3 sides and 3 angles of △ABC is exactly equal to 3sides and 3 angles of △DFE. This means △ABC is congruent to △DFE.We write it as △ABC ≅ △DFEACTIVITYAim:It is sufficient if I can show that the 3 sides of one triangle is equal 3 sides of anothertriangle.The 3 angles of both the triangles become automatically equal.The two triangles are congruent.Procedure:Have students cut straws into the following lengths:2 straws 8 centimeters in length2 straws 11 centimeters in length2 straws 5 centimeters in length

If two triangles have three pairs of congruent angles, then the triangles are not guaranteed to be congruent.A.TrueB.False

Triangle ABC is congruent to triangle DEF.

If two angles of a triangle are congruent, then the sides opposite those angles are congruent.A.TrueB.False

The Third Angle Theorem states that if two angles in one triangle are congruent to two angles in another triangle, then _____.Question 4Select one:a.the two triangles are congruent.b.the remaining angles in each can't be congruentc.the remaining angles in each are congruent, as well