alleryA,B,C are distinct points on a circle; ∠ACB=90°. What must AB be?
ADiameter
BTangent
CShort chord
DRadius
Answer & Solution
Correct answer: A. Diameter
The right inscribed angle intercepts a semicircle, making its endpoints the ends of a diameter.
Keep practising Geometry: Similarity, Circles & Loci
Browse all Geometry: Similarity, Circles & Loci questions for ICSE Class 10, or explore more Mathematics topics.
Related questions
Match each circle tangent theorem with its geometric property:Match each circle intersection feature with its name:Match each cyclic quadrilateral property with its rule:Match each tangent calculation with its result:In a nondegenerate triangle, its incircle's centre must lieWhich condition verifies a constructed circle is a triangle's incircle?Set the compass point at a triangle's circumcentre. Which opening draws its circumcircle?Where is a right triangle's circumcentre?