Question

Choose the correct rule that applies to the pattern.

• A. Number of triangles increases by 2, 3, 4
• B. one triangle decreases at very step
• C. one triangle increases at very step
• D. the image gets smaller at every step

Answer 1

The correct option is A Number of triangles increases by 2, 3, 4

Step 1 = 1 traingle
Step 2 = 3 triangles
Step 3 = 6 triangles
Step 4 = 10 triangles

So, at each step, the number of triangles added increases by 2, 3, 4, and so on.