Jajar genjang PQRS sudut P banding sudut Q = 2 banding 3. tentukan sudut”nya

Misal
p = 2n
q = 3n
<p + < q = 180
2n + 3n = 180
5n = 180
n = 180/5 = 36
maka :
<p = <r = 2n = 2(36) = 72 °
<q = <s = 3n = 3(36) = 108°