Question

3A rectangular prism net is shown.3 in1 in11 in1 in1 in1 in33331 inWhat is the surface area of the net?143+3+3+3= 6 + 6 = 121212= 14

Answer 1

The prism net shown in the figure consists of 4 identical 3x1 rectangles and two 1x1 squares; therefore,

$\begin{gathered} A_{rectangle}=3*1=3 \\ and \\ A_{square}=1*1=1 \end{gathered}$

Thus,

$A_{total}=4A_{rectangle}+2A_{square}=4*3+2*1=12+2=14$

Hence, the surface area of the net is 14in^2