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

Question

Mathematics

Felipe Preston

19 July, 17:01

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

+3

Answers (2)

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Kelvin Christensen · Answer 1

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

Andrea Oneill · Answer 2

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