Across
- 1. The ratio of the circumference of a circle to its diameter.
- 5. The distance around the edge of a circle.
- 8. A theorem that states that in a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.
- 9. The operation of addition.
Down
- 1. A number that has exactly two distinct natural number divisors: 1 and itself.
- 2. The result of multiplying a number by itself.
- 3. A polygon with eight edges and eight vertices.
- 4. A polygon with ten edges and ten vertices.
- 6. The operation of subtraction.
- 7. The result of multiplying a number by itself twice.