Find the value of x. If necessary, round your answer to the nearest tenth. O is the center of the circle. The figure is not drawn to scale.


A. 13
B. 26
C. 77
D. 38.5

Find the value of x If necessary round your answer to the nearest tenth O is the center of the circle The figure is not drawn to scale A 13 B 26 C 77 D 385 class=

Respuesta :

AB = CD   [given]
OA = OB = OC = OD    [radii]
So, ΔOAB = ΔOCD  (SSS)

In congruent triangles all corresponding angles and are congruent, so 
∠x = ∠COD = 77°