Question

Tony makes a triangle using three sticks of length 20 inches, 21 inches and 28 inches. The triangle Tony makes is a right triangle.
True
False

Answer 1

Use Pythagorean Theorem if it's true, then it's a right triangle.
\[c^{2} = a^{2} + b^{2}\]\[28^{2} = 20^{2} + 21^{2}\]\[784 = 400 + 441\]\[784 ≠ 841\]Therefore, it's false.

Answer 2

wow