In the diagram shown, m
arc ABC?

(1) 20.6

(2) 21.6

(3) 40.4

(4) 41.2

(2) 21.6

Step-by-step explanation:

The segment OA is the radius of the circle

The arc of the complete circle is equivalent to its perimeter

perimeter = 2*π*radius = 2*π*10 = 62.83 cm

This arc is proportional to 360°. So, for 124°:

360°/124° = 62.83 cm / x cm

x = 124*62.83/360

x = 21.6 cm