Answer:
Step-by-step explanation:
a=e= 90 b/c it is square
b= 45, it half of square
c base in rule of sin or cos, tan.
d=2,85
cos
take 31 degree as reference angle
using cos rule
cos 31=adjacent/hypotenuse
0.85=14/x
x=14/0.85
x=16.47
x=16.5
