00:01
All right, in this one, i find angle a.
00:05
So you take 180 minus the sum of 18 .7 plus 124 .1.
00:13
So 180 minus, use a calculator, 18 .7 plus 124 .1 is 142 .8.
00:28
180 minus that, 37 .2.
00:39
Okay.
00:39
So now you can set up your two proportions.
00:49
So you can say 18 .7 over the sign of 94 .6 equals a over the sign of 37 .2.
01:04
Likewise for c, 18 .7 over sign of 94 .6 equals c over c over over sign of 124 .1 cross multiply divided by the sign of 94 .6.
01:37
So this left or this right side, excuse me, that's your answer just in decimal form, put in the calculator...