Mathematics for IGCSE & O level - Circle Theorems (Section 1 - No. 31)
What theorem relates the angle formed by a tangent and a chord with an angle in the alternate segment of the circle?
Angle at the center is twice the angle at the circumference.
Angles in the same segment are equal.
Alternate Segment Theorem.
Opposite angles of a cyclic quadrilateral are supplementary.
Пояснення
The Alternate Segment Theorem relates the angle formed by a tangent and a chord and an angle in the alternate segment.