A circle has radius of 7cm. How many degrees is the central angle subtended by an arc of length 5.5 cm?
can anybody help me what this problem all about... I can't understand the problem... Please do illustrate.
thanks
Hey rcs.
For this you should use the standard arc-length formula which is arc-length = r*theta where r is the radius and theta is the angle sub-tended.
Arc (geometry) - Wikipedia, the free encyclopedia