Question

please describe and solve it​

Answer 1

Answer:

$60 \: degree$

Step-by-step explanation:

2 X angle a = (angle O)

...The angle subtended by an arc of a circle at its center is twice the angle it subtends anywhere on the circle’s circumference.

angle a = 1/2 X 120°

angle a = 60°

Answer 2

Answer:

Answer:

60 \: degree60degree

Step-by-step explanation:

2 X angle a = (angle O)

...The angle subtended by an arc of a circle at its center is twice the angle it subtends anywhere on the circle’s circumference.

angle a = 1/2 X 120°

angle a = 60°