Answer:
12.4cm (rounded to nearest tenth)
Explanation:
To find the length of an arc, you have to find the circumference of the full circle itself multiplied by the angle of the arc over 360°. The circumference of a circle is pi × r × 2.
Length of arc =
× 3.14 × 7.9 × 2
= 12.403
≈ 12.4cm (rounded to nearest tenth)