TOLONG BANTU NO 10 YANH ADA TULISAN PR

jawab
sudut keliling dansudut pust
<QOR = 2 x <QPR 
<QOR = 2(50)= 100°

ΔQOR  segitga sama kaki
<ORQ = 1/2 (180 - <QOR)° =1/2 (180-100)° = 1/2 (80)= 40°
<PRQ = <PRO + <ORQ = 15° + 40°= 55°