## Counting Triangles Again

#### Problem

How many triangles are there in the diagram below?

#### Solution

Consider the diagrams.

So there are 8 + 4 + 4 + 4 = 20 triangles in the diagram.

Problem ID: 69 (Mar 2002) Difficulty: 1 Star

How many triangles are there in the diagram below?

Consider the diagrams.

So there are 8 + 4 + 4 + 4 = 20 triangles in the diagram.

Problem ID: 69 (Mar 2002) Difficulty: 1 Star