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Question

Seg AB is the diameter of a circle. C is the point on the circumference such that in ABC, B is less by 10o than A. Find the measures of all angles of ABC.

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Solution

Angle subtended by diameter on any point on circle is 90o
ACB=90o
In ABC,B+C+90=180
A10+A+90=180A=50o
B=40o





























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