Step-by-step explanation:
sinA=p/h
sinA=12/15
A=sin-¹(4/5)=53.13=53°
<CAB=53°
Answer:
a)1.41666667 b)705882353 / 1000000000
not sure about this one.
PICTURE1: They are both 45
PICTURE2: 810
I inserted an image of the equation.
Hope this helps!
