There least common factor would be 5 since they are all divisible by 5.
This then allows us to see exactly how and where the subtended angle θ of a sector will fit into the sector formulas. Now we can replace the "once around" angle (that is, the 2π) for an entire circle with the measure of a sector's subtended angle θ, and this will give us the formulas for the area and arc length of that sector
The answer is C. 2. Hope this helped. now go pass that assignment.