Jawabanmu

2014-05-18T17:58:25+07:00
7/18 x 180 = 70

Begini kalo tidak salah :3
2014-05-18T18:00:00+07:00
7x + 11X = 180 drjt
18x = 180 drjt
x = 180 / 18
x = 10 drjt

Sudut P = 7x
             = 7 * 10
             = 70 drjt