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Nesterboy [21]
3 years ago
7

I need help with 10 please

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0

Answer:

254 cm^{2}

Step-by-step explanation:

Surface Area = 2Lh+2Lw+2wh

L=4 cm

h=9 cm

w=7 cm

Surface Area = 2(4)(9)+2(4)(7)+2(7)(9)

Surface Area = (72+ 56 +126)cm^{2}

Surface Area = (72+ 56 +126)cm^{2}

Surface Area =254 cm^{2}

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