00:02
Okay, for this problem, we're trying to determine if these points are the vertices of a rhombus meaning that all sides are equal.
00:11
So you can see i kind of sketched out a graph of it here.
00:16
So what we can do is we can label these points.
00:19
A, b, c, and d.
00:22
And we're going to use the distance formula, which says distance is x2 minus x1 squared plus y2 minus y 1.
00:38
Squared.
00:40
Okay, so we want to find out is the distance between all these points equal.
00:43
So we can start with a, b, and they go in this order.
00:49
Let's see a, b, c, d is down here.
00:55
Okay, so first we wanted to determine the distance between a and b, which would be the square root of x2 minus x1, so you have 13 minus negative 2 squared plus 10 minus 2 squared, which will give us, this will turn into a plus a double negative...