3. In the diagram of the cabinet door, the measure of
22 = 84º. What is the measure of 24?
A. 6°
B. 76
C.84

answer: a

step-by-step explanation:

i think the answer is d im not sure

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

actually what is a question i don't understand