Which math sentence can be used to determine if this triangle is a right triangle?

Side 12

Side 15

Side 18

12 + 15 = 18

122 + 152 = 182

12+18 = 15

122 + 182 - 152

12^2 + 15^2 = 18^2

Step-by-step explanation:

If we have 3 sides of a triangle we can use the Pythagorean theorem to determine if the triangle is a right triangle

a^2 + b^2 = c^2

12^2 + 15^2 = 18^2

If this is true, then the triangle is a right triangle