8 + 6 +1
A triangular prism.
triangular polygon
a triangular pyramid
Quite possibly, a triangle.
A triangular prism has 9 edges and 6 corners. P.S. In math, corners are called vertices.
A tetrahedron is a 3-dimensional figure with four sides - i.e. a triangular pyramid.
a square pyramid (i found it in my sons math book !)
no im pretty sure that they only have 4 but come on man that's like 5th grade math A triangular prism has 5 faces, a triangular face on each end and three rectangular faces along its parallel sides.
The law of sines: http://www.ies.co.jp/math/java/trig/seigen/seigen.html
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Oh, dude, it's like super simple. The 50th triangular number is just the sum of all the numbers from 1 to 50. So, you can use the formula n(n+1)/2, where n is 50 in this case. Plug it in, do the math, and boom, you've got your answer. It's like math, but with a little extra pizzazz.
A triangular dipyramid.A triangular dipyramid.A triangular dipyramid.A triangular dipyramid.