Answer:
61°
Step-by-step explanation:
Angle extended to the circumference is half the angle at the centre
ADC = ½ ABC = ½ × 122 = 61
7/6
(7x/12)/(x/2)
=7/6
-18
-12 + (-2)(3)
= (-12)+((-2)x(3))
= (-12)+(-6)
= (-12)-(6)
= -18
158.4
