Question

Two triangles ABC and POR are similar, if $BC:CA:AB=1:2:3$, then $\frac{QR}{PR}$ is:

• A. $\frac{1}{3}$
• B. $\frac{1}{2}$
• C. $\frac{1}{\sqrt{2}}$
• D. $\frac{2}{3}$

Answer 1

The correct option is B $\frac{1}{2}$

If triangles ABC and PQR are similar, then the ratio of PQ to QR will also be 1 : 2.
Note: If two triangles are similar, then their corresponding sides will be in the same ratio.