Respuesta :

The circumference of the circle and the radians measure of the angle are; 16π mm and 1.5 radians

How to find the angle in a circle?

1) Formula for circumference of a circle is;

C = 2πr

We are given;

radius; r = 8 mm

Thus;

C = 2π * 8

C = 16π mm

2) We know that:

Circumference of a circle is also;

C = 2π radians

Thus to find the radians measure of the angle is;

16π mm = 2π radians.

Then

12 mm has an angle of  x radians

Thus;

x = (12 mm  *  2π radians)/16π mm

x = 1.5 radians.

Read more about circle angles at; https://brainly.com/question/1335226

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