Which of the following options represents an equation that can be used to solve for the missing side of a right triangle? select all that apply.

a. a^2 + b^2 = c
b. b^2 - c^2 = a^2
c. c^2 = a^2 = b^2
d. c = a + b

I think you might have made a mistake in your answers. If we use Pythagorean Theorem of a^2 + b^2 = c^2, we can manipulate this to also be...
c^2 - a^2 = b^2 or
c^2 - b^2 = a^2

be sure you copied your answers correctly when comparing with the above answer.