00:01
In this problem, it says the diagonal of a rectangle is 5 inches.
00:04
So i'm going to go ahead and label this diagonal with a 5.
00:11
And that the length is one inch more than the width.
00:15
So i'm going to make the width x and the length x plus 1.
00:21
And it wants us to find the dimensions of the rectangle.
00:25
Now, because this makes a right triangle, i'm going to use pythagorean theorem, a squared, plus b squared, equals c squared, to find these two lengths.
00:35
So that would be x squared plus x plus one squared equals 5 squared.
00:46
So that's x squared.
00:48
I'm going to write this twice.
00:57
And then i'm going to multiply these together...