please answer it ..........................
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IN TRI. ABC
BY ANGLE SUM PROPERTY
ANGLE ( ABC + BAC + ACB ) = 180*
69+31+ @BAC =180
THEREFORE ANGLE BAC = 80*
NOW ANGLE BAC = BDC
ANGLE IN SAME SEGMENT ARE EQUAL
THEREFORE
ANGLE BDC = 80*
BY ANGLE SUM PROPERTY
ANGLE ( ABC + BAC + ACB ) = 180*
69+31+ @BAC =180
THEREFORE ANGLE BAC = 80*
NOW ANGLE BAC = BDC
ANGLE IN SAME SEGMENT ARE EQUAL
THEREFORE
ANGLE BDC = 80*
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