Question

Rukhsar painted the outside of the cabinet of measure $1m\times 2m\times 1.5m$. How much surface area did she cover if she painted all except the bottom of the cabinet.

• A. $11m^2$
• B. $1.1m^2$
• C. $11c{m}^2$
• D. $1.1c{m}^2$

Answer 1

The correct option is A $11m^2$

Here $\ell =2m,b=1mandh=1.5m$
Area to be painted
$=2bh+2\ell h+\ell b$
$(2\times 1\times 1.5+2\times 2\times 1.5+2\times 1)m^2$
$(3+6+2)m^2=11m^2$.