Answer :

EPSTER1

Answer:

C) 490 units²

Step-by-step explanation:

[tex]SA=2(7*7)+2(14*7)+2(14*7)[/tex]

[tex]SA=2(49)+2(98)+2(98)[/tex]

[tex]SA=98+196+196[/tex]

[tex]SA=490[/tex]

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