Question

Which among the following are Pythagorean triplets?

• A. 201
• B. 402
• C. 603
• D. 104

Answer 1

Answer: (A), (B), (C)

The correct options are
A

201

B

402

C

603

If the sum of the squares of two natural numbers equals the square of the third number, then such numbers are called Pythagorean triplets

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

Observe that ${15}^2+8^2=225+64=289={17}^2$

Also, ${0.03}^2+{0.04}^2=0.0009+0.0016=0.0025={0.05}^2$

${12}^2+{16}^2=144+256=400={20}^2$

and hence these numbers form a Pythagorean triplet.