Question

Sides of two similar triangles are in the ratio of $4:9$ then area of these triangles are in the ratio

• A. $2:3$
• B. $4:9$
• C. $81:16$
• D. $16:81$

Answer 1

The correct option is D $16:81$

$\because \Delta ABC\sim \Delta DEF$
$\therefore \frac{ar\Delta ABC}{ar\Delta DEF}=\frac{{\left(4\right)}^2}{{\left(9\right)}^2}=\frac{16}{81}=16:81.$