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Originally Posted by My First Timbs
mathematics is a human construct, therefore, to use his example, a right angle is DEFINED as 90 degrees. Mathematics is a language with which we can describe the Universe we live in. The triangle describes a set of similar objects, which we define to obey a certain set of rules. Thus, a right-angled triangle is defined to be an object which has three sides, obeys Pythagoras's Theorem and whose angles add up to 180 degrees. Thus, the argument fails.
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Einstein said that his triangle had three 90 degree spots!!! BANGA