Answer
$$a=52.7m$$
$$b=230.1m$$
Work Step by Step
To find side a, we can use the trigonometric ratio for sine.
$sinA=\frac{a}{c}$
Where
$A=12.9°$
$c=236m$
Solving for a we get:
$a=c*sinA$
$a=236m*sin(12.9°)$
$a=236m*0.2233$
$a=52.7m$
To find side b, we can use the trigonometric ratio for cosine.
$cosA=\frac{b}{c}$
Where
$A=12.9°$
$c=236m$
Solving for b we get:
$b=c*cosA$
$b=236m*cos(12.9°)$
$b=236m*0.9748$
$b=230.1m$
