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I need help on 21 and 22

I need help on 21 and 22-example-1
User Isuru
by
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1 Answer

3 votes

Answer:

Q-22 (a) area of each face (square) = sxs

= 10 x 10

= 100 inches²

Total surface area = 6a²

= 6 x 10 x 10

= 600 inches²

User Juno
by
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