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alina1380 [7]
3 years ago
8

Please please give answer

Mathematics
1 answer:
Lisa [10]3 years ago
3 0

Answer:

40 square cm

Step-by-step explanation:

2(l + b) = 28

(l + 4) = 28/2

l + 4 = 14

l = 14 - 4

l = 10 cm

Area = lb = 10*4 = 40 square cm

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