Question

Sandy uses 41 round beads to make some triangles. how many triangles did she make.​

Answer 1

3

Explanation:

Numbers of beads used in making triangles:

3, 6, 10, 15, 21, 28, 36, ...

We need to pick a few numbers from those above that add to 41.

3 + 10 + 28 = 41

Answer: 3 triangles