Find two numbers that multiply to -56 and add to -1
1 answer:
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<span>The surface area of a prism = 2 x area of base + perimeter of base x H
So
Surface area =
2 x ( 9x3) + (9+3+9+3) x 15
= 2 x 27 + 24 x 15
= 54 + 360
= 414
So the surface area would be
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So
Surface area =
2 x ( 9x3) + (9+3+9+3) x 15
= 2 x 27 + 24 x 15
= 54 + 360
= 414
So the surface area would be