00:01
Okay, so this problem has a quadrilateral rstv with interior angles of v at 5n, r and t will be at 2n, and s is at 6n.
00:25
Now a quadrilateral, the interior angles add up to 360.
00:31
So the sum has to be 360.
00:34
I got that by doing a 4 minus 2, which is 2 times 180, using our sum formula.
00:42
So, and then 360 is just something, you should have memorized for quadrilaterals since they're so common.
00:48
Another thing you can think of is like a square is 490s and a square is a quadrilateral.
00:55
Okay, if we add up all the ends, we have two plus six plus five plus two.
01:00
So that's going to be 15n is equal to 360.
01:08
Okay, if we divide both sides by 15, we're going to have n is equal to 24.
01:17
24? yes...