Mathematics for IGCSE & O level - Circle Theorems (Section 3 - No. 9)
What is the relationship between the angle formed by two tangents from an external point and the major arc intercepted by the tangents?
They are supplementary.
They are equal.
They are complementary.
They are always acute.
Giải thích
The angle formed by two tangents and the major arc they intercept are supplementary.