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Answer:
the value of a and b is 68
Explanation:
the other half is 224 so you minus 360 from 224 which will give us 136 then you divide by 2 to get a and b.
a = 68, b = 136
The angle in the circle = 360°, thus
b = 360 - 224 = 136
The inscribed angle a between a tangent- chord is equal to half the measure of its intercepted arc, so
a = 0.5 × 136 = 68