+42 The radian measure of a central angle of 90º is pi/2( = 1.5707963267948966). What must the radian measure of a central angle of 180º be? How can you tell without computing the radian measure?
+1904 180°=π radians
I know that becase 1°=π180° and if you multiply pi180° by 180° you get 180°π180° and if you reduce you get π.
+1904 180°=π radians
I know that becase 1°=π180° and if you multiply pi180° by 180° you get 180°π180° and if you reduce you get π.
