Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**emmakatecumbo****Member**- Registered: 2017-09-22
- Posts: 35

9. If N = 11

Give the number of diagonals for the following polygons:

10. If N = 43

11. If N = 55

12. If N = 20

13. If N = 89

14. If N = 33

Offline

**bob bundy****Administrator**- Registered: 2010-06-20
- Posts: 8,404

and again.

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

Pages: **1**