Question

O is the center of the circle. Calculate angle 1 and angle 2

Answer 1

Answer:

L2 + 130° = 180° ( Opposite Angie of a cyclic quadrilateral)

L2 = 180° - 130°

L2 = 50°

L1 + L2 + 90° = 180° ( Sum of angle in a right angled triangle)

L1 + 50° + 90° = 180°

L1 + 140° = 180°

L1 = 180° - 140°

L1 = 40°

L1 = 40° , L2 = 50°

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