Question

please answer it urgently question no. 3
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Answer 1

Step-by-step explanation:

hey mate here is your answer....

since the area of one face is a2

and in cube there are 6 faces..so area will be 6*l2

l2+l2+l2+l2+l2+l2=6l2

hope it helps you..marks it as brainliest answer