using diagonals from a common vertex, how many triangles could be formed from the polygon pictured below?
using diagonals from a common vertex, how many triangles could be formed from the polygon pictured below?
Answer
Explanation:
Step1: Identify polygon sides
The polygon has 7 sides.
Step2: Apply triangle - formation formula
The number of triangles formed by diagonals from a single vertex of an $n$-sided polygon is $n - 2$. Here $n=7$, so $7 - 2=5$.
Answer:
5