Question

Every surface of the block shown will be painted, except for one of the bases. How many square units will be painted? 3.2 cm 3.2 cm 3.2 cm

Answer 1

As given that the every surface of the block shown will be painted, except for one of the bases.

And a block have 6 surface but one is not painted so there are 5 surface that are painted so:

The area of the painted surface is:

$A=5a^2$

Where a is 3.2 cm

$\begin{gathered} A=5(3.2)^2 \\ A=5\times10.24 \\ A=51.2cm^2 \end{gathered}$

The area of painted surface is 51.2 square cm