Question

5, 12 and form a Pythagorean triplet.

• A. 6
• B. 7
• C. 13

Answer 1

The correct option is C 13

Pythagorean triplets form the three sides of a right-angled triangle.

According to the Pythagoras theorem,

$a^2+b^2=c^2$

Here

$5^2+{12}^2$
= $25+144=169$
= $\sqrt{1}69=13$
= $5^2+{12}^2={13}^2$
Hence $5,12,13$ form the Pythagorean triplet.