Question

BC is 20.78 cm
If true then enter $1$ and if false then enter $0$

Answer 1

Given: $AB=12$, $\angle ACB={30}^{\circ }$
Now, $\tan 30=\frac{P}{B}=\frac{AB}{BC}$
$\frac{1}{\sqrt{3}}=\frac{12}{BC}$
$BC=12\sqrt{3}$
$BC=20.78$ cm