Question

Can 2cm, 2cm, 5 cm be the sides of a right-angled triangle? JUSTIFY​

Answer 1

No way these lengths can be the sides of a right triangle

Explanation:

Use the Pythagorean theorem

`2^(2) + 2^(2) \\eq 5^(2) \\4 + 4 \\eq 25`

No way these lengths can be the sides of a right triangle

Answer 2

No, they cannot be the sides of a right triangle.

To see if the sides make a right triangle, take the largest number, 5 in this case and check if the other two numbers add up to 5. In this case, they do not.