Question

If a rectangle of a sides $5$cm and $15$cm is be divided into three squares of equal area, then the sides of the squares will be:

• A. $4cm$
• B. $6cm$
• C. $7cm$
• D. $5cm$

Answer 1

Answer: (D)

Area of rectangle $=$ 3 $\times$ area of 1 square

$\Rightarrow 5\times 15=3\times a^2$

$\Rightarrow a^2=25\Rightarrow a=\sqrt{25}=5cm$

$\therefore$ Side of square = 5cm