Jawabanmu

2014-06-16T13:03:52+07:00
9. S = 1,2,3,4,5,6,7,8,9
     P= 1,2,5
Komplemen P = 3,4,6,7,8,9

A3 =110
B4 =180-110
     = 70
Luas layang-layang =15cmX8cm/2
                             = 60cm

2014-06-16T15:43:00+07:00
9)S={1,2,3.4.5,6,7,8,9}
P={1,2,5}
P(komplemen)={3,4,6,7,8,9}
32)a.A1=110°
A3=B4=70°
b.L=d1xd2/2
=15x8/2
=60 cm^2