Let O be the center of the circle, AB-chord of this circle, different from the diameter, M-midpoint AB. What is the angle ОМВ?

Draw 2 radii of the circle OA and OV. Now, consider the triangle AOB. AO = OB (as radii) => triangle AOB – isosceles with base AB. AM = MB => OM-median triangle AOB – isosceles with base AB. => OM-height => m



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