Question

Construct a $\Delta ABC$ AB=$5$, $\angle A={120}^o$,AC=$7$. Construct incircle in it.The radius is

• A. $1.5$
• B. $1.8$
• C. $2$
• D. $2.5$

Answer 1

The correct option is B $1.8$

$\therefore$ Radius $=1.8cm.$

Hence, the answer is $\mathrm{1.8.}$