Question

In circle A shown below, the measure of ∡BAD is 148°.
If measure of arc is 105°, what is measure of arc cd??

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0801_02/image0014e847353.gif

Answer 1

I kind of understand this. I just think my math is wrong.

Answer 2

missing information

Answer 3

The measure of arc bc is 105. Im looking for the length of arc cd.

Answer 4

This is what Im thinking. 148, the measure of angle BAD, is half 296. 296 is going to be the measure of the whole arc BD. So to find the measure of arc CD I'm thinking I do 360-105??

Answer 5

Arc(BC) + Arc(CD) = 148

Find Arc(CD) from here..

Answer 6

So I don't take half of it? Or do you only do that when the angle is inscribed?

Answer 7

No..

Then angle is not inscribed..

It is Center Angle..

Answer 8

Center Angle = Intercepted Arc...

Answer 9

So:

148 = Arc(BD)

Answer 10

Okay. So I do 148-105 and that gives me the answer then?

Answer 11

Yes..

Answer 12

Thank you(:

Answer 13

Welcome dear..