Answer:
Surface area of the rectangular prism = [tex]234\,mm^2[/tex]
Step-by-step explanation:
The surface area of the rectangular prism is:
[tex]=2((Length\times Width)+(Width\times Height)+ (Height\times Length))[/tex]
[tex]Length=15\,mm\\ \\Width=3\,mm\\\\Height=4\,mm[/tex]
Area is:
[tex]=2((15\times 3)+(3\times 4)+ (4\times 15))\\\\=2(45+12+60)\\\\=2(117)\\\\=234\,mm^2[/tex]
Surface area of the rectangular prism is: [tex]234\,mm^2[/tex]
