Question

May I please get help with this problem as for I have tried multiple times

Answer 1

Given:

Given a rectangular prism and its net.

Required: Surface area

Step-by-step explanation:

(a) From the rectangular prism,

`A=9\text{ mm},B=2\text{ mm},C=\text{5 mm,}D=5\text{ mm}`

(b) Surface area

`\begin{gathered} =AB+AD+BC+BC+AB+AD \\ =9\cdot2+9\cdot5+2\cdot5+2\cdot5+9\cdot2+9\cdot5 \\ =18+45+10+10+18+45 \\ =146 \end{gathered}`

Final Answer: The surface area of the rectangular prism is 146 square millimeters.