Question

Please help ! Picture posted below

AC is a diameter, points B and D are on the circle, the measure of arc AB=60º, and m∠ACD=40º. Find m∠DAB

Answer 1

This is a little harder.

Answer 2

If arc AB is 60, and ACD is 40 (so the arc must be double that, or 80) then the rest of the circle must be 360-60-80 or 220 degrees. So because DAB is the rest of the circle, it must be half 220, or 110 degrees.

Answer 3

Understand?

Answer 4

Yes thankyou