Question

15. In cyclic ABCD, ZB = 75°, then find
ZD. (Nov. '20)
As we know, opposite angles of a cyclic quadrilateral are supplementary.
Therefore, angle D +angle B=180°
Angle D+75°=180°
Angle D=180°-75°=105°
Therefore angle D=105°
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Answer 1

Answer:

180°-75°=105°

Step-by-step explanation:

As we know, opposite angles of a cyclic quadrilateral are supplementary. Therefore, angle D +angle B=180° Angle D+75°=180° Angle D=180°-75°=105°