What is the total surface area of the right triangular prism?

Hello,Here is the pdf. I need help on number 54 only.Thanks,Fatemeh or:Hello,Here is the pdf. I need help on number 54 only.Thanks,Fatemehor:Need the

Hello,
Here is the pdf. I need help on number 54 only.
Thanks,
Fatemeh

or:Hello,Here is the pdf. I need help on number 54 only.Thanks,Fatemeh

or:Need the link to the pdf.

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