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Helena is an engineer that designs packaging for new products. She designed a box in the shape of a rectangular prism with dimensions of 10 inches by 7 inches by 4 inches. What is the surface area of the box? 138 square inches 276 square inches 280 square inches 441 square inches

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Answer

276 square inches.

Step-by-step explanation:

Area of rectangular prism = 2(lb + bh + lh)

2(10*7 + 7*4 + 10*4)

2( 70 + 28 + 40)

2 * 138

276 square inches
please give me Brainliest

emeralds18

Answer:

answer is b

Step-by-step explanation:

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