Respuesta :

fieryanswererft

Name of the shape:

  • Triangular Prism  - a three sided prism "triangular base"

Surface Area of Right Triangular Prism:

⇒ Base x Height + Length(perimeter of the base)

  • 4 x 3 + 11(3 + 5 + 4)
  • 12 + 11(12)
  • 12 + 132
  • 144 cm²

There surface area of this shape is 144 cm²

#a

  • Triangular prism

#b

If sides be L,B,H

Then

  • TSA=BH+L(Perimeter of base)

#c

Now

  • TSA=4(3)+11(3+5+4)
  • TSA=12+11(12)
  • TSA=144cm²