Question

The triangle whose lengths of sides are 4 cm, 5 cm and 6 cm is a right-angled triangle.

• A. True
• B. False

Answer 1

The correct option is B

False

For any length to be sides of a right-angled triangle, the sum of the squares of the 2 sides should be equal to the square of the third side.

Here,

$4^2+5^2=16+25=41\ne =6^2$

Since the squares of 4 and 5 don't add up to the square of 6, these do not form a Pythagorean triplet

Hence, they cannot be used to represent the three sides of a right-angled triangle.