Geometry exam

5. a figure with no sides or corners
9. V=1/3hπr²
10. two lines that meet or intersect each other at right angles
11. a polygon figure with three sides and three angles
13. a measure of the steepness of a line.
14. a type of triangle where all the sides are equal
15. circumference divided by two pie
17. the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.
18. a type of triangle with a right angle.
21. a measure of three-dimensional space

1. when a shape can become the other after a resize, flip, slide or turn.
2. an infinitely long object with no width, depth, or curvature.
3. line moving in the same direction but always the same distance apart.
4. area the outside part or uppermost layer of something
6. is a point located on a segment that bisects it.
7. two times the radius
8. ph+2B
12. 2/3 πr3
16. V=4/3πr3
19. is the branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.
20. a one-dimensional locus of points that forms half of a circle.