Question

Calculate the mangle EBF , given marc DA = 45° and marc EF = 160°. I got 180! but it seems to be incorrect.. :(

Answer 1

Is arc EF 60 degrees or 160 degrees?

Answer 2

160

Answer 3

right?

Answer 4

I think angle EBF = (far arc - near arc) / 2 = (arc EF - arc DA) / 2 = (160-45)/2 = 57.5 degrees

Answer 5

So 57.5 will be my answer?

Answer 6

I think so. But it has been ages since I did geometry.

Answer 7

Okay ill try that thanks :)

Answer 8

you are welcome.