Use the formula for radian measure to calculate the measure of a central angle in a circle having a radius
of 12 cm and intercepting an arc of 21 cm.
The angle has a measure of
radians.
DONE

Naomi draws a portion of a figure as shown she wants to construct a line segment through r that makes the same angle with qr as pq what figure shows the next step to construct a congruent angle at r