Find the length of the radius of a circle if a chord of the circle has a length of 12 cm and is 4 cm from the center of the circle. Show Video Lesson Try the freeMathway calculator and problem solverbelow to practice various math topics. Try the given examples, or type in your own...
Given a circle whose diameter and circumference are divided into 120 and 360 parts respectively, Ptolemy was able to calculate the corresponding chord length for every central angle up to 180° in half-degree intervals. Given, in the diagram to the right that ...