Seudónimo Seudónimo
  • 08-07-2021
  • Mathematics
contestada

Please help me with this one

Please help me with this one class=

Respuesta :

pandeyprasamsha381
pandeyprasamsha381 pandeyprasamsha381
  • 08-07-2021

Answer:

2×5×7+2×5×2+2×7×2

70+20+28

108cm^2

Answer Link
MiReU
MiReU MiReU
  • 08-07-2021

[tex] \huge\boxed{\mathfrak{Answer}}[/tex]

[tex]l = 5 \: cm \\ w = 2 \: cm \\ h = 7 \: cm[/tex]

The formula to find SA => 2lh + 2lw + 2hw

[tex]SA => 2lh + 2lw + 2hw \\ = 2 \times 5 \times 7 + 2 \times 5 \times 2 + 2 \times 7 \times 2 \\ = 70 + 20 + 28 \\ = 118 \: \: cm {}^{2} [/tex]

=> The surface area of the rectangular prism is 118 cm².

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