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Lisa is building a structure to be used in the school play. The structure is in the shape of a right triangular prism. A sketch is shown.

Lisa Is Building A Structure To Be Used In The School Play The Structure Is In The Shape Of A Right Triangular Prism A Sketch Is Shown class=

Sagot :

Solution:

Note that:

  • Surface area = Area of all faces

Finding the area of the two triangles

  • 2(1/2 x 8 x 6)
  • => 8 x 6
  • => 48 ft²

Finding the area of rectangle₁

  • 12.6 x 10
  • => 126 ft²

Finding the area of rectangle₂

  • 12.6 x 6
  • => 75.6 ft²

Finding the area of rectangle₃

  • 12.6 x 8
  • => 100.8 ft²

Finding the surface area of the figure

  • 48 + 126 + 75.6 + 100.8
  • => 350.4 ft²

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