(19 POINTS) SHOW WORK!!

Answer:
Apply sine and cosine theorem:
sinA = BC/AC = 16/20 = 4/5
cosA = AB/AC = 12/20 = 3/5
tanA = sinA/cosA = (4/5)/(3/5) = 4/3
Hope this helps!
:)
Answer:
sin 16/20 = 0.717
cos 12/20 =0.825
tan
Step-by-step explanation
A when you draw a line down you get 16 cause we are looking sin of A first
B inside the box when you draw a line up it point to 20
together you get sin 16/20 = 0.717
for the cos it is A to b in between them is the adj
which is 12
and a to c is 20 is the hypotenus
togther is cos 12/20 = 0.825