Tolong dibantu ya…..​

Penjelasan dengan langkah-langkah:

3. A. < QOR

= 2 x < QPR

= 2 x 50°

= 100°

B. < OQR : OQ = OR = jari-jari

= 40° < OQR sama

kaki

< OQR = < ORQ

= 180-100°/2

= 80/2 = 40°

C. < PQR

= 180-(50+55)

= 180 -105 = 75°