cake3056
cake3056 cake3056
  • 11-04-2019
  • Mathematics
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what is the surface area of this rectangular prism? ​

what is the surface area of this rectangular prism class=

Respuesta :

MrsStrong
MrsStrong MrsStrong
  • 18-04-2019

Answer:

684 in²

Step-by-step explanation:

The surface area of a prism is found using the following formula: SA = 2(lh+lb+bh). This formula takes the area of each face (6 in total( and adds them together to find a total sum. Substitute l = 15, b = 6 and h = 12 to solve for the surface area.

SA = 2(lh+lb+bh)

SA = 2(15*12+15*6+6*12)

SA = 2(180 + 90 + 72)

SA = 2(342)

SA = 684

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