Answer:
[tex]\bold{8\pi}[/tex] or [tex]\bold{25.12}[/tex]
Step-by-step explanation:
We know that as shown by the diagram, the radius is 4. So in this case, we want to find the circumference of the entire circle, then just multiply by [tex]\frac{3}{4}[/tex], because the radii from the intact section are perpendicular.
The circumference of a circle is just [tex]\pi \times d[/tex] where [tex]d[/tex] is the diameter of the circle. The diameter is just the radius [tex]\times 2[/tex] which gives us
[tex]d = 4 \times 2 = 8[/tex]
Thus lending us [tex]8\pi[/tex] or [tex]25.12[/tex] if we substitute [tex]\pi[/tex] with 3.14.
