Question

Anyone can help me.....??

Answer 1

Since AB is diameter,
Angle ADB = 90.
Therefore Angle BDC = 124 - 90 = 34.
Since BDC and BAC subtends same angle corresponding to Arc AB,
Angle BAC = 34 degree

Answer 2

u know sum of opposite angles in a quadrilateral is 180
then angle ADC+ABC= 180
given ADC is 124°
then ABC= 180-124= 56°
we know angle ACB = 90
and we also know that sum of all angles in a triangle is 180
if we taken triangle ABC
ANGLE A=X°
B=56°
C=90
then A+B+C= 180
I.e., X° = 180-146= 34°
therefore angle BAC= 34°