Question

Given: DR tangent to Circle O. (image below)
If m DB = 150°, then A = ?

75

105

150

Answer 1

105

Answer 2

How would I do it though?

Answer 3

sorry didn't mean to re-send that.

Answer 4

here is 360 degrees in a circle so 360 - 150 = 210 and when there is a thing (I forgot how you call it) but A has to equal the half so it is 105 degrees

Answer 5

sorry my computer was messing up

Answer 6

Same here. Thanks.

Answer 7

lol you're welcome