anonymous
  • anonymous
how do you work out the area of a triangular prism?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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nowhereman
  • nowhereman
Multiply the height by the area of the triangle.
anonymous
  • anonymous
so how do you work out the area?
anonymous
  • anonymous
Work out the area of the triangle then multiply this by the length of the prism. If still not sure, post a copy of the question.

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anonymous
  • anonymous
Surface Area = 2b + Ph (b is the area of the base P is the perimeter of the base)
anonymous
  • anonymous
Since it's a triangular prism, you' have to find the area of the triangle (the figure is named after its base). Area of a triangle is 1/2bh. The formula multiplies it by 2 because you have two triangular bases on a triangular prism. Surface = 2b + Ph (b is the area of the base P is the perimeter of the base)
anonymous
  • anonymous
Krimson, copy out the question and post it
anonymous
  • anonymous
work out the total surface area of the triangular prism give units with your answer
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anonymous
  • anonymous
Thanks. The base of the triangle is 8cm and the height is 6cm, the other dimension is not needed. Area of a triangle is vertical height (6cm) x base (8cm) divided by 2 Area of this triangle is therefore 24cm^2 Now multiply by the length of the prism (12cm) Answer = 288cm^3

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