Question

Select the correct option(s) about the congruency of the angles.

• A. All the angles in a regular polygons are congruent.
• B. If two angles are said to be congruent, then they must have same measure.
• C. In an isosceles triangle, two angles are congruent.
• D. In a scalene triangle, any angle is congruent to other.

Answer 1

Answer: (A), (B), (C)

The correct options are
A All the angles in a regular polygons are congruent.
B If two angles are said to be congruent, then they must have same measure.
C In an isosceles triangle, two angles are congruent.

If two angles are said to be congruent, then they must have the same measure.

In a regular polygon, all the angles are equal, so they are congruent.

In an isosceles triangle, two angles opposite to the equal sides are equal, so they are congruent.

In a scalene triangle, no angle is equal, so they are not congruent to any angle.