Geometry

4. the midpoint of the diameter of the circle.
6. Changes the size of a figure but does not change it’s shape which mean it change size but not shape.
10. A mirror image of the shape or known as a flip.
12. straight line segment that passes through the centre of the circle and whose endpoints lie on the circle.
14. the part or segment of the circumference of a circle.
15. the point that divides the segment into two equal parts, effectively placing it exactly halfway.
17. calculating area, perimeter, volume, and other properties of shapes.
18. a straight line segment connecting two points on the circumference of a circle.
20. Movement of a figure from one position to another on a plane without changing its size or shape.

1. a way, especially one of several possible variations, in which a set or number of things can be ordered or arranged.
2. have the same shape and size or are the same.
3. a set of points, such that for any point of the set the distance to a fixed point , the focus, is equal to the distance to a fixed line.
5. a point that marks the end of a line segment or the starting point of a ray.
7. a straight line segment that connects the center of a circle or sphere to any point on its circumference or surface.
8. Transformation that turns a figure around a fixed point called the center of rotation.
9. shapes are the points where two or more line segments or edges meet
11. a way of selecting items from a set where the order of selection doesn't matter.
13. a statement or an educated guess about a geometric property or relationship that is believed to be true but has not yet been proven.
16. A mnemonic device used to remember the trigonometric ratios in right triangles
19. a part of a circle made of the arc of the circle along with its two radii.