Question

question 6 of 10
which best completes the following sentence?
triangles are congruent if they have the same
a. name
b. size and shape
c. size
d. name and shape

Explanation:

Congruent triangles are defined as triangles that have the exact same size (corresponding sides are equal) and the exact same shape (corresponding angles are equal). The name of a triangle (like labeling it triangle \(ABC\) or \(DEF\)) has no bearing on congruence. Just having the same size (option C) is not enough as shape (angle measures) also matters. Option D with name and shape is incorrect because name is irrelevant.

Answer:

B. size and shape