The sum of the number of vertices of triangle and the number of vertices of a pentagon is the same as the vertices of an

well, 3+5=8, so ...

To find the answer to this question, we need to understand the properties of the shapes involved.

A triangle has 3 vertices, as it is a three-sided polygon.

A pentagon has 5 vertices as it is a five-sided polygon.

We are given that the sum of the number of vertices of a triangle and the number of vertices of a pentagon is equal to the number of vertices of another shape. Let's call this shape "x."

So, we can set up an equation:

3 (vertices of the triangle) + 5 (vertices of the pentagon) = x (vertices of shape x)

Simplifying the equation, we get:

8 = x

Therefore, the number of vertices of shape "x" is 8.

octagon. An octagon has 8 vertices.

Let's break it down step-by-step:

1. The number of vertices in a triangle is 3.
2. The number of vertices in a pentagon is 5.
3. Summing the number of vertices of a triangle and a pentagon: 3 + 5 = 8.
4. Therefore, the sum of the number of vertices of a triangle and a pentagon is the same as the number of vertices of an octagon.

So, the answer is 8.