Given Side Lengths: 20, 11, 16
A Right Triangle must satisfy the Converse of the Pythagorean Theorem: a2 + b2 = c2
From the given side lengths, let a = 11, b = 16, c = 20 (c cannot be less than a or b)
a2 + b2 = (11)2 + (16)2
a2 + b2 = 121 + 256 = 377
c2 = (20)2 = 400
a2 + b2 ≠ c2 (377 ≠ 400)
Therefore, a Triangle with side lengths of 11, 16 and 20 is NOT a Right Triangle
Note: Since a2 + b2 < c2 (377 < 400), the Triangle is an Obtuse Triangle
A Right Triangle must satisfy the Converse of the Pythagorean Theorem: a2 + b2 = c2
From the given side lengths, let a = 11, b = 16, c = 20 (c cannot be less than a or b)
a2 + b2 = (11)2 + (16)2
a2 + b2 = 121 + 256 = 377
c2 = (20)2 = 400
a2 + b2 ≠ c2 (377 ≠ 400)
Therefore, a Triangle with side lengths of 11, 16 and 20 is NOT a Right Triangle
Note: Since a2 + b2 < c2 (377 < 400), the Triangle is an Obtuse Triangle
