00:01
Okay, so i see that you need help with this question, and it says, how does the area of triangle rst compare to the area of triangle lmn? so, first of all, if i wanted to find the area of rst, i'm just going to draw a box around this.
00:19
So, this is 1, 2, 3, 4 by 1, 2, 3, 4.
00:24
So, it's a 4 by 4, which is 16.
00:27
And i'm going to subtract 4 by 3, which is 12, divided by 2, which is 6.
00:36
So, that's 10 right now.
00:38
And this is 2 by 1.
00:42
So, that's minus 1 is 9, minus.
00:48
And then this is a 2 by 4, which is 8.
00:51
So, then 8 divided by 2 is 4.
00:54
So, that's 5 units squared.
00:56
And then for this one, for this triangle, this is a 1, 2, 3 by 1, 2, 3, 4...