Maths Camp Crossword

1. The measure of the amount of surface a shape covers.
5. The result of multiplying two or more numbers.
7. The enclosing boundary of a curved geometric figure, especially a circle.
12. A triangle in which all three sides are of equal length.
13. A whole number; a number that is not a fraction.
14. A quadrilateral with at least one pair of parallel sides.
17. A number greater than 1 with no positive divisors other than 1 and itself.
18. The longest side of a right-angled triangle, opposite the right angle.
19. The result of adding two or more numbers.
20. A plane figure with four equal straight sides and four right angles.
21. A numerical quantity that is not a whole number.
23. A plane figure with at least three straight sides and angles, typically five or more.

2. Basic branch of mathematics dealing with symbols and rules.
3. The continuous line forming the boundary of a closed geometric figure.
4. The amount of space that a substance or object occupies.
6. The branch of mathematics involving points, lines, planes, and figures.
8. At an angle of 90 degrees to a given line, plane, or surface.
9. A point where two or more curves, lines, or edges meet.
10. The result of dividing one number by another.
11. The distance from the centre of a circle to any point on its circumference.
15. A mathematical statement that asserts the equality of two expressions.
16. A number expressed in the scale of tens.
22. The space between two intersecting lines or surfaces at or close to the point where they meet.
23. The ratio of the circumference of a circle to its diameter.