DevajY210910 DevajY210910
  • 25-10-2022
  • Mathematics
contestada

hi there. can you help me with the second part here? I am not sure what set up they are looking for.

hi there can you help me with the second part here I am not sure what set up they are looking for class=

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KodiM444482 KodiM444482
  • 25-10-2022

First let's remember that a regular octahedron is solid with 8 faces all of them equilateral triangles, so if we find the area for each face we know that is just finding the area of an equilateral triangle:

And if we want to know the surface area of all the figures we just need to multiply the area of one equilateral triangle by 8 because there are 8 faces, and as you can see the value a is the value of each edge so, let's do it:

The length of each edge is 8 ft

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