Given $\Delta ABC \sim \Delta PQR$, if $\frac{AB}{PQ} =\frac{1}{3}$

Triangles (10)

Given $ \Delta ABC \sim \Delta PQR, if \frac{AB}{PQ} = \frac{1}{3}$, then find $\frac{ar\Delta ABC}{ar\Delta PQR}$

Answer

$$\frac{ar\Delta ABC}{ar\Delta PQR} $$

$$ = \frac{AB^2}{PQ^2}$$

$$ = \left(\frac{1}{3}\right)^2 = \frac{1}{9} $$

Exam Year: 2018