Question

4. Is (1,9, 12) a Pythagorean Triplet? Justify your answer​

Answer 1

Answer:

A "Pythagorean Triple" is a set of positive integers, a, b and c that fits the rule:

a2 + b2 = c2

Pythagoras a b c triangle

Triangles

And when we make a triangle with sides a, b and c it will be a right angled triangle (see Pythagoras' Theorem for more details):

pythagoras squares: a^2+b^2=c^2

Note:

c is the longest side of the triangle, called the "hypotenuse"

a and b are the other two sides