a hitung nilai c. B. berapa besar sudut pqs

Garis dan Sudut

a) Nilai c
<PQS + <RQS = 180°
3c + 45 + 30 = 180
3c + 75 = 180
3c = 180 - 75
3c = 105
c = 105/3
c = 35

b) Besar <PQS
<PQS = 3c + 45
<PQS = 3 x 35 + 45
<PQS = 105 + 45
<PQS = 150°

*semoga membantu. sukses selalu ^_^