Answer:
B
Step-by-step explanation:
A triple a, b, c is a Pythagorean triple if
[tex]a^2+b^2=c^2.[/tex]
Check all options:
A.
[tex]2^2+3^2=4+9=13\neq 6^2.[/tex]
B.
[tex]3^2+4^2=9+16=25=5^2.[/tex]
C.
[tex]4^2+5^2=16+25=41\neq 9^2.[/tex]
D.
[tex]5^7^2=25+49=74\neq 12^2.[/tex]
