< Previous OAB is a sector of a circle. The area of OAB is 18 mm². Calculate the central angle, 0, to 1 d.p. A 4.6 mm 0 Watch video B O Not drawn accurately​

lt Previous OAB is a sector of a circle The area of OAB is 18 mm Calculate the central angle 0 to 1 dp A 46 mm 0 Watch video B O Not drawn accurately class=