EB and DA are diameters of circle Y. What is the measure of arc EDC?

Option (D). 110°

Step-by-step explanation:

Since EB and AD are diameter,

= = 180°

= 180° -------(1)

And

180° = 40° +

= 140°

Since,

= 140° [Given ]

= 70°

From equation (1),

= 180° -

= 180°- 70°

Therefore, measure of arc(EDC) = 110°

Option (D) will be the answer.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)