Question

1. choose the correct answer.

triangles in which their corresponding angles and corresponding sides are congruent are called ____.
○ corresponding angles of polygons
○ included angle
○ congruent polygons
○ congruent triangles

1. choose the correct answer.

a(n) ____ is an angle formed by the intersection of two adjacent sides of a polygon.
○ included angle
○ corresponding angles of polygons
○ congruent triangles
○ nonincluded side

Explanation:

1. By the definition of congruent triangles, if corresponding angles and sides of two triangles are congruent, they are congruent triangles.
2. An included angle is formed by the intersection of two adjacent sides of a polygon.

Answer:

1. congruent triangles
2. included angle