Question

State whether the following pair of triangle is similar or not. Write the similarity criterion used and write it in symbolic form.

Answer 1

In $\Delta ABC$ and $\Delta PQR$

Hence, $\frac{AB}{PQ}=\frac{2}{4}=\frac{1}{2}$

$\frac{BC}{QR}=\frac{1}{2},\frac{AC}{PR}=\frac{1}{2}$

As, $\frac{AB}{PQ}=\frac{BC}{QR}=\frac{AC}{PR}$

So, $\Delta ABC\sim \Delta PQR$ [by SSS similarity criterion]