step by step explanation

Answer:
only a is the right triangle
Step-by-step explanation:
only a is the right triangle because it satisfies the pythagorean theorem.
a.)
[tex]c ^{2} = a ^{2} + b ^{2} \\ 63 = 25 + 38\\ 63 = 63 \\ true[/tex]
while b,
b.)
[tex]c ^{2} = a ^{2} + b ^{2} \\ 60 = 25 + 38 \\ 60 = 63 \\ false[/tex]