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Triangle rulers can also differ in how the measurements run, whether along the sides or from the base to the tip. There are times when each comes in handy.
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Ghost rider, great link, great refresher although I had never heard of scalene triangle. Always learning something on this QB!! Don't want that Alzheimer's to get a heads up!
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I would like to thank everyone for their responses. Now I just need to find where I can purchase a 12" e. triangle ruler. BrendaK
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Originally Posted by ghostrider
(Post 6797793)
No, not at all the same thing! While an equilateral triangle does, by definition, have equal sides (of any length) AND equal angles (always 60º), there are a myriad of non-equilateral (aka scalene) 60º triangles. Surely you've heard of a 30º-60º-90º right triangle?
The pattern that calls it a '60º equilateral triangle' is far more accurate than the one calling it merely a '60º triangle', though the latter probably just figured people would "assume" that's what was intended...as you all did. :) |
I agree with Ghostrider. Only equilateral if all sides are the same length.3 different lengths and one angle 60* would make others usually 90 and 30*.
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Originally Posted by dunster
(Post 6797885)
Triangle rulers can also differ in how the measurements run, whether along the sides or from the base to the tip. There are times when each comes in handy.
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Originally Posted by ghostrider
(Post 6797793)
No, not at all the same thing! While an equilateral triangle does, by definition, have equal sides (of any length) AND equal angles (always 60º), there are a myriad of non-equilateral (aka scalene) 60º triangles. Surely you've heard of a 30º-60º-90º right triangle?
The pattern that calls it a '60º equilateral triangle' is far more accurate than the one calling it merely a '60º triangle', though the latter probably just figured people would "assume" that's what was intended...as you all did. :) |
Thanks for this link. I am "math challenged" and appreciate the lesson.
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Originally Posted by ghostrider
(Post 6797793)
No, not at all the same thing! While an equilateral triangle does, by definition, have equal sides (of any length) AND equal angles (always 60º), there are a myriad of non-equilateral (aka scalene) 60º triangles. Surely you've heard of a 30º-60º-90º right triangle?
The pattern that calls it a '60º equilateral triangle' is far more accurate than the one calling it merely a '60º triangle', though the latter probably just figured people would "assume" that's what was intended...as you all did. :) Thanks |
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