Respuesta :

#1

LSA

  • 4(1/2BH)
  • 4(1/2×9×12)
  • 2(9)(12)
  • 216cm²

TSA

  • LSA+9²
  • 216+81
  • 297cm²

#2

LSA

  • 3(1/2(13)(15))
  • 1.5(195)
  • 292.5cm²

TSA

  • 292.5+1/2(195)
  • 1.5(195)+0.5(195)
  • 2(195)
  • 390cm²

#3

LSA

  • 4(1/2(6)(16))
  • 2(96)
  • 192cm²

TSA

  • LSA+6²
  • 36+192
  • 228cm²

#4

LSA

  • 2(1/2(8)(6))+2(1/2(6)(6.5))
  • 8(6)+6(6.5)
  • 48+39
  • 87cm²

TSA

  • 87+8(6)
  • 87+48
  • 135cm²

#5

We know

  • TSA=LSA+Area of base

So

  • LSA=TSA-Area of base

She can use this formula

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