Which of these could be a step to prove that BC2 BA2 CA2 B

Which of these could be a step to prove that BC^2 = BA^2 + CA^2? By segment addition. DC plus AD is equal to BC By segment addition. DC plus AD is equal to AB. By segment addition. DC plus BD is equal to BC. By segment addition. DC plus BD, s equal to AB

Solution

By segment addition, DC plus BD is equal to BC

BC = BD + DC

Using pythagorean theorem, considering BC as the hypotenuse of the right angle triangle BAC , the given statement will be proved