snv0129
snv0129 snv0129
  • 19-05-2018
  • Mathematics
contestada

what is the surface area of this triangular pyramid

what is the surface area of this triangular pyramid class=

Respuesta :

wolf1728
wolf1728 wolf1728
  • 19-05-2018

Equilateral Triangle Height = side * square root (3) / 2 =

12 * 0.8660254038 = 10.3923048454

Triangle Area = 12 * 10.3923048454 * .5

= 62.3538290724

Pyramid Area = 62.3538290724 * 4 sides =

249.4153162896



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