This problem asks whether a given set of points is convex or not. A set of points is convex if, for any two points in the set, the line segment connecting them lies entirely within the set.
This theorem states that a triangle is isosceles if and only if the sum of the squares of its two shorter sides is equal to the square of its longest side.
The sum of the interior angles of a polygon with n sides is (n-2)*180 degrees.
Here you can see some books and stories that will be written in the coming days! It's like having your personal ghostwriter. Check this page tomorrow when they are ready.