Question

using diagonals from a common vertex, how many triangles could be formed from the polygon pictured below? answer attempt 2 out of 2

Explanation:

Step1: Recall the formula

The number of triangles formed by drawing diagonals from a single - vertex of an $n$-sided polygon is $n - 2$.

Step2: Count the sides

Count the number of sides of the given polygon. The polygon has 8 sides, so $n=8$.

Step3: Calculate the number of triangles

Substitute $n = 8$ into the formula $n - 2$. We get $8-2=6$.

Answer:

6