Answer
$c = 724.4$ units
$a = 657.1$ units
$A = 65.1˚$
Work Step by Step
1. Find the missing length $c$
$\frac{c}{sin(90)} = \frac{305}{sin(24.9)}$
$c = \frac{305}{sin(24.9)}$
$c = 724.4$ units
2. Find the missing angle $A$
$180 = 90 + A + 24.9$
$180 = A + 114.9$
$A = 65.1˚$
3. Find the missing length $a$
$\frac{a}{sin(65.1)} = \frac{724.4}{sin(90)}$
$a = \frac{724.4sin(65.1)}{1}$
$a = 657.1$ units