Find the degree measure of the angle subtended at the centre of a circle of
radius 100 cm by an arc of length 22 cm.(Use π = 22/7)
We know that in a circle of radius r unit, if an arc of length l unit subtends
an angle θ radian at the centre, then θ = l/r
Therefore, for = 100 cm, l = 22 cm, we have
Thus, the required angle is 12°36′.
