Respuesta :

renknee

Answer:

C. 108 square inches

Step-by-step explanation:

How do we find the surface area?

  ❖ To find the surface area, we have to calculate the area of each

       shape on a 3D figure.

Solving for Area of Triangles

  • [tex]\frac{3*4}{2}[/tex]
  • [tex]12/2 = 6[/tex]
  • [tex]6*2 = 12[/tex]
  • Area of triangles are 12 square feet.

Solving for Area of Rectangles

  • [tex](8*3)+(8*4)+(8*5)[/tex]  
  • [tex]24+32+40[/tex]
  • [tex]96[/tex]
  • Area of rectangles are 96 square feet.

Solving Area of Rectangle and Triangle

  • 96 + 12
  • 108 square inches

Have a lovely rest of your day/night, and good luck with your assignments! ♡

semsee45

Answer:

108 ft²

Step-by-step explanation:

Area of a rectangle = width × length

Area of a triangle = 1/2 × base × height

Surface area = rectange + rectangle + rectangle + 2 congruent triangles

                     = (3 × 8) + (4 × 8) + (5 × 8) + 2(1/2 ×3 × 4)

                     = 24 + 32 + 40 + 12

                     = 108 ft²