Question

Leon states that 21, 28, 35 is a Pythagorean triple because the lengths found in step 2 form a Pythagorean triple. Which explains whether or not Leon is correct?

Answer 1

the correct answer is A

Explanation:

Leon is correct because the lengths found in step 2 form a Pythagorean triple

I also took the unit test and got a 100%

Answer 2

I don't know what 'step 2' is

a² + b² = c²

a = 21² = 441
b = 28² = 784
c = 35² = 1225

441 + 784 = 1225

Leon is correct