Answer:
{21,48,52}
Step-by-step explanation:
{57,76,95}
57² + 76² = 3249 + 5776 = 9025
95² = 9025
Right triangle
{15,20,25}
15² + 20² = 225 + 400 = 625
25² = 625
Right triangle
{21,48,52}
21² + 48² = 441 + 2304 = 2745
52² = 2704
Not a right triangle
{3,4,5}
3² + 4² = 9 + 16 = 25
5² = 25
Right triangle