Question

Find ACD if BAC is 40 and DOC is 120

Answer 1

if BACis 40 then BDC is 40

here, DOC is a triangla

ACD = 20

Answer 2

$if \: abc \: is \: 40 \: then \: bdc \: is \: 40 \\ \\ here \\ \\ \: doc \: is \: a \: traingle \\ \\ acd = 20$