Central & Inscribed Angles
Central angle=2×Inscribed angle
The angle of the arc to the centre is twice the angle of the circle.
Interactive demo: open this page in a JavaScript-enabled browser to drag the parameters and watch the live readouts.
Central angle=2×Inscribed angle
The angle of the arc to the centre is twice the angle of the circle.
Interactive demo: open this page in a JavaScript-enabled browser to drag the parameters and watch the live readouts.