00:01
This one is a two -parter, so we're going to be using our equation, which is our area, equals one -half radius squared times our angle.
00:17
This time we are given our area ahead of time, which means that we've got 12, and then we've got our one -half.
00:30
We don't know our radius, so that's what we're solving for.
00:34
And then we're given our theta, which in this case is 0 .7.
00:38
So to start off, we're going to simplify this a little further.
00:44
So we've got 12.
00:45
We can do our 1 half of 0 .7, which is 0 .35 radius squared.
00:57
From there, we can divide by 0 .35 from both sides, which will leave us with r squared, equaling 12 over 0 .35...