Determine whether a triangular fence with side lengths of 3 ft, 4 ft, and 5 ft represents a right triangle. choose one letter the right one a. yes, because 3+4=5 b. yes, because 3^2 + 4^2 = 5^2 c. no, because 3+4 does not equal 5 d. no, because 3^2 + 4^2 does not equal 5^2