Question

Find measure of the arc AB

Answer 1

Angles ADB and ACB both intercept Arc AB, so they are equal

Answer 2

7z - 4 = 5z + 20

Answer 3

yep I thought that so I got z = 185

Answer 4

so then the arc AB would be 1/2 of the angle measurement?

Answer 5

I got z = 12. Can you show what you did?

Answer 6

opps z = 12

Answer 7

I accidentally used 50 instead of 20

Answer 8

ohh ok

Answer 9

So then plug the z into either one of the expressions to find the angle

Answer 10

and multiply the angle by 2 to find Arc AB

Answer 11

so I got the angles are both 80

Answer 12

that's what I got

Answer 13

oh the formula to find the arc is
80 = 1/2 x so you multiply by 2? I was thinking divide

Answer 14

so the arc is 160

Answer 15

yep

Answer 16

Thanks!!