00:01
In this problem, we're discussing pentagons, which are five -sided shapes, and discussing what the difference is between a concave pentagon and a convex pentagon.
00:12
If we look at these two pentagons that i've drawn here, we have an equilateral concave pentagon.
00:19
And that means that, first of all, it's equilateral, which means all five sides are the same, which you can see here, which you can see here by the dashes.
00:31
Each side showing that all five sides are equal.
00:35
Now this is not necessarily drawn to scale, so don't take my drawing for, don't measure my drawing, but know that the lines do indicate that these are equal.
00:46
And we know that it's a concave pentagon because it, because one or more interior angles, one or more interior angles is larger, than 180 degrees.
01:17
And that's kind of the definition of a concave pentagon.
01:20
And we can see right here, these two angles right here can be larger than 180 degrees for the pentagon.
01:36
As far as the equilateral convex pentagon, we can tell it's equilateral because, again, the lines indicate that each side is equal.
01:44
An equilateral convex pentagon means that all interior angles are less than 180 degrees...