Find the value of t in the diagram
-
A.
63(^o) -
B.
117(^o) -
C.
126(^o) -
D.
234(^o)
Correct Answer: Option C
Explanation
In the diagram,
(alpha) = 180(^o) – 177(^o) (angles on a straight line)
(alpha) = 63(^o)
t = 2 x 63(^o) (angle at centre = 2 x angle at circum)
= 126(^o)