Question

http://prntscr.com/s2sw1c

Would this be 90?

Answer 1

@silvernight269

Answer 2

Okay, so we know the angle of the minor arc, which is 30 degrees. We also know that the entire circle is 360 degrees. If you look, arc BAC is just the whole circle minus BC

Answer 3

and that a circle is always 360 degrees. right?

Answer 4

Yes

Answer 5

arc BAC is 360 and arc BC is 30. Based off that, what do you think arc BAC is?

Answer 6

But you said BAC is 360

Answer 7

A whole circle is 360, arc BAC isnt the whole circle am I right? Im probably wrong

Answer 8

Think of it like this. BAC plus BC equal to 360

Answer 9

So 330

Answer 10

Thats if we subtracted 360 by 30

Answer 11

Yep

Answer 12

If arc BC was more to half of BAC it would be 90 am I correct?

Answer 13

if Point B was parallel to Point D then yes. CD would a 90-degree angle

Answer 14

Got it okay that makes sense. Im going to open a new post

Answer 15

Sorry, I was gone for a while

Answer 16

Its okay thanks for your input