Acircle has a radius of length r. if you mark off an arc on the circle of length 3r. what is the measurment of of the angkebthat sub tends the arc? a.3 radians b. 3pir radians c. 3r radians d. 3pi radians

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.