00:01
Okay, this one, they give you a, which is 68 .41.
00:05
They give you b, which is 54 .23.
00:09
They don't give you angle c, and they give you little a, which is 12 .75, and you got to find, it says determine the remaining sides and angles, right? okay, so now you can find angle c.
00:23
That's the easiest side to find.
00:25
You just take 180 minus the sum of 68 .41 plus 54 .23.
00:35
So you get 180 minus 68 .41 plus 523.
00:46
122 .64.
00:51
180 minus that is 57 .36.
01:00
And then you can set up your two proportions to find sides.
01:05
And c so you can say 12 .75 over the sign of 68 .41 equals b over the sign 54 .23.
01:22
You can do the same thing for side c so 12 .75 over the sign 68 .41 equals c over the sign of 57 .36.
01:40
Cross multiply, right? so you should get b, sign of 68 .41 equals 12 .75, sign 54 .23, divided by the sign...