Circle theorems - A, B and C are points on the circumference of a circle with centre O, AC is a diameter of the circle. Write down the size of angle ABC

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Circle theorems Q.A1.C.6 High-school syllabus questions

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Krishna (last edited 4 years ago) (Expert, Educator @Qalaxia)

Step 1: Remember all the theorems of the circle

Step 2: Find the angle by using the suitable theorem

NOTE: Angle in semi circle = 90

Step 3: Apply the theorem to find the required value.