ig2h4cnrst
ig2h4cnrst ig2h4cnrst
  • 16-07-2021
  • Mathematics
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mistressofdark
mistressofdark mistressofdark
  • 16-07-2021

Rectangular prism is a cuboid.

Surface area of a cuboid = 2lw+2wh+2hl

So, here,

Surface area = 2lw+2wh+2hl

=> Surface area = [2(10cm)(3cm)] + [2(3cm)(20cm)] + [2(20cm)(10cm)]

=> Surface area = 60cm² + 120cm² + 400cm²

=> Surface area = 580cm²

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