drake20 drake20
  • 04-05-2017
  • Mathematics
contestada

finding the surface area

finding the surface area class=

Respuesta :

jdoe0001 jdoe0001
  • 04-05-2017
so hmm notice the picture below

the triangular prism, is really just 3 rectangles and 2 triangles, stacked up to each other at the edges

now, just get the area of the triangles and the rectangles, and add them up, and that's the surface area of the triangular prism

now, what's the length "x"?  well  [tex]\bf x^2=5^2+7^2\implies x=\sqrt{25+49}\implies x=\sqrt{74}[/tex]
Ver imagen jdoe0001
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