Answer:
140
Step-by-step explanation:
Angles 1, 2 and 3 are in a straight line,
Straight line has 180 degrees,
∠1 = ∠3 = 20
∠1 + ∠2 + ∠3 = 180
20 + ∠2 + 20 = 180
∠2 + 40 = 180
∠2 = 180 - 40
∠2 = 140
Answer:
To determine the circumference, of the circle what you would need to do is to use the formula for the Circumference.
This formula can be seen as : C = Pi x Diameter.
C = 2 x Pi x R.
Download photomath it’ll answer it 4 u
The second option is what I would choose bro