Euclid's Proof that the Square Root of 2 is Irrational
Euclid proved that √2 (the square root of 2) is an irrational number. He used a proof by contradiction. First Euclid assumed √2 was a rational number.| Math is Fun
A Prime Number is ... a whole number above 1 that cannot be made by multiplying other whole numbers ... The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19 and 23, and we| www.mathsisfun.com
Euclid proved that √2 (the square root of 2) is an irrational number. He used a proof by contradiction. First Euclid assumed √2 was a rational number.| Math is Fun
The exponent of a number says how many times to use the number in a multiplication. In 82 the 2 says to use 8 twice in a multiplication, so 82 =...| Math is Fun
Imagine we want to measure the exact diagonal of a square tile. No matter how hard we try, we won't get it as a neat fraction.| Math is Fun
