Given an arc length of 8 inches and a diameter of 12 inches, what is the resulting angle measurement in radians? ​

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

We just started the introduction into circles and i have no idea how to do this.

The figure below shows rectangle abcd and the triangle eca on a coordinate plane. which of the following expressions represents the perimeter of triangle of triangle eca in units