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4 August, 12:20

A right rectangular prism has a length of 5 cm, a width of 4 cm, and a height of 3 cm. The dimensions of the prism are doubled. What is the surface area of the enlarged prism? Enter your answer in the box. ___cm²

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  1. 4 August, 13:25
    0
    5*4*3*2 it would be 120 square centimeter

    Oh nvm this is S. A hmm lemme ok

    S. A = 5*4 - 5*3 - 4*3 so all of that would equal 20 - 15 - 12 then welp I don't have a calculator so here's a tip so far
  2. 4 August, 15:51
    0
    A=2 (lw+lh+wh) and if everything is doubled you have dimensions of:

    10,8, and 6 so

    A=2 (10*8+10*6+8*6)

    A=2 (80+60+48)

    A=2 (188)

    A=376 cm^2
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