Mathematics for IGCSE & O level - Circle Theorems (Section 1 - No. 36)
If two chords intersect inside a circle, how are the angles formed related to the intercepted arcs?
Each angle equals half the sum of the intercepted arcs.
Each angle equals half the difference of the intercepted arcs.
The angles are unrelated to the arcs.
The angles are supplementary to the intercepted arcs.
解释
Each angle formed is half the sum of the arcs.