Question

1. how many sides does a nonagon have?
2. how many angles does a triangle have?

Explanation:

Question 2: How many angles does a triangle have?

Step1: Recall triangle definition

A triangle is a polygon with 3 sides. By the definition of a triangle, the number of angles is equal to the number of sides (since each side forms an angle with the adjacent side).

Step2: Determine the number of angles

Since a triangle has 3 sides, it has 3 angles.

Answer:

3