PA and PB are tangents from P to a circle with centre C. if angle APB is 40 degree, then find angle ACB.
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PA and PB are tangents from P to a circle with centre C. if angle APB is 40 degree, then find angle ACB.
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HELLO
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40+90+90+angle ABC= 360
220+angle ABC=360
angle ABC= 360-220
angle ABC= 140
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