Hunor's crossword

3. The point of intersection of all the three medians.
5. The longest side of a right-angled triangle.
11. A polygon with at least one interior angle greater than 180°.
12. Two shapes are ... if they have the same shape. and size.
13. A quantity that can be changed and is not fixed.
14. A number that is being multiplied by a variable.
16. The path followed by an object moving under the action of given forces.
17. The intersection point of the altitudes drawn from the vertices of the triangle to the opposite sides.

1. The distance around the edge of a shape.
2. a point on a polygon where the sides of the object meet.
4. An equation which is true for all values of the variable.
6. The number of times a number needs to be multiplied by itself.
7. The process of turning from liquid into vapour.
8. A line that connects two vertices of a polygon.
9. A number that divides another number, leaving no remainder.
10. The leftover number in a division problem.
11. Accurate drawings of shapes, angles and lines in geometry.
15. State of a body that moves freely in any manner in the presence of gravity.