Geometric symbols

2. it is the angle between two intersecting arcs of great circles on a sphere
5. the figure formed by two rays meeting at a common end point.
6. arcminute, 1° = 60
7. defined as a part of a line that has a fixed starting point but no end point.
10. if they have the same shape and size, or if one has the same shape and size as the mirror image of the other
11. a straight one- dimensional figure that has no thickness and extends endlessly in both direction
12. defined as the measure of the angle formed by the two rays or arms at a common vertex
14. equal to 90°

1. The largest exponent the variable has in a polynomial with one variable.
3. are lines in a plane that are always the same distance apart.
4. are lines that intersect at a right (90 degrees) angle.
8. line from point A to point B
9. arcsecond, 1′ = 60
13. the ratio of the circumference of any circle to the diameter of that circle.
15. any smooth curve joining two points