Select the correct answer.

Which triangles in the diagram are congruent?

Set of 4 triangles are plotted on a grid. Triangle 1 has 2 congruent sides and the angle between them is 70 degrees. Triangle 2 has 3 congruent sides. Triangle 3 has 2 congruent sides and the angle between them is 70 degrees.
A.
triangle 1 and triangle 2
B.
triangle 1, triangle 2, and triangle 3
C.
triangle 1 and triangle 3
D.
triangle 1, triangle 3, and triangle 4

1 answer

C. triangle 1 and triangle 3