Which set of side lengths is a Pythagorean triple?

A. 1, 3, 10

B. 4, 5, 9

C. 9, 40, 41

D. 16, 30, 44

Ok so just do

a^2+b^2=c^2

c=longest side

a and b are the other sides

input for a and b and c and see which ones are true

A. 1^2+3^2=10^2

1+9=100

10=100

false

B, 4^2+5^2=9^2

16+25=81

41=81

false

C. 9^2+40^2=41^2

81+1600=1681

1681=1681

true

D. 16^2+30^2=44^2

256+900=1936

1156=1936

false

answer is C