Question

The area of a rectangle perfectly enclosing 12 squares of side 1 m and 2 squares of side 2 m is.

• A. $18{\text{m}}^2$
• B. $20{\text{m}}^2$
• C. $15{\text{m}}^2$

Answer 1

The correct option is B $20{\text{m}}^2$


The rectangle encloses 12 full squares of $1\text{m}$ side which means it is $12{\text{m}}^2$.
Also it encloses 2 squares of $2\text{m}$ side which gives us $8{\text{m}}^2$. So, the total area enclosed by the rectangle is = $12{\text{m}}^2+8{\text{m}}^2=20{\text{m}}^2$