Answer:
The surface area of the ceral box is 1,500u².
Step-by-step explanation:
2(30 × 5)+2(30 × 20)= 1,500
30 × 5 = 150
30 × 20 = 600
150 × 2 = 300
600 × 2 = 1,200
1,200 + 300 = 1,500
There's your answer, hopefully it's correct!
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