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.
Einstein said that his triangle had three 90 degree spots!!! BANGA