Point A is on the inside of a maze that is a simple closed curve. A segment from point A to the outside of the maze must cross the border of the maze an ___EVEN____ number of times for point A to be inside the maze.

Question

If a convex polyhedron has 6 vertices and 8 faces, then it has __12____ edges.


The number of points in a taxicab circle with radius 5 is ___20___.

Which of the following is the only degree measure that could not be the sum of the angle measures of a spherical triangle?
220°

300°

182°

544° <-----

Answer 1

All correct except the first.

A point from the inside of a simple figure will cross an odd number of times to connect to any point outside.

Answer 2

Thank you very much MathMate :)

Answer 3

You're welcome!