Colleen and Jolleen both used their calculators to find sin 30°. Colleen got sin 30° = –0.9880316241, but Jollen got sin 30° = 0.5. Is one of their calculators broken, or is something else going on? Why did they get different answers? Homework Help ✎
Try calculating sin(30°) in both degree mode and radian mode on your calculator.