circle E with a diameter AC and m<DAC = 62 degrees, calculate the following

Question

m<BAC arc m<AD m<ABD and m<DBC

Answer 1

No idea where B is.

arc length is radius time central angle.

m<DEC = 2*m<DAC
m<DEA = 180 - m<DEC = 180-124 = 56
arc AD = radius * 56 = AC*28*(pi/180)