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Find the surface area of the triangular prism help plzzz​

Find the surface area of the triangular prism help plzzz​-example-1
User Marnix
by
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1 Answer

6 votes

Answer:

790 m^2

Explanation:

well in the figure we have to areas

  • the rectangle of the side (2)
  • the triangle (2)
  • the rectangle of the base (1)

the rectangle of the side

well the area of the rectangle is base times height

we have a base of 11 and a height of 17


A_(rs)=11*17\\\\A_(rs)=187

the triangle

well the area of a triangle is base times height over 2

we have a base of 16 and a height of 15


A_t = (16\cdot 15)/(2)\\\\A_t= 8\cdot15\\\\A_t=120

the rectangle of the base

we have a base of 16 and a height of 11

so


A_(rb) = 16\cdot 11\\\\A_(rb) = 176

so the total area is


A_T = 2(A_(rs))+2(A_(t))+1(A_(rb))\\\\A_T= 2(187)+2(120)+1(176)\\\\A_T=374+240+176\\\\A_T = 790

so that's our answer the surface area is 790 m^2