2 and 1.step-by-step explanation: plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't: 0 = 1 is not true.2 = 2 is true.4 = 4 is true.8 = 16 is not true.hope this !...Read More
< coa = 150 ( given)as ba and bc are tangentsso oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre so in quadrilateral oabc <...Read More