know79 know79 03-11-2022 Mathematics Answered Using the Pythagorean theorem, we can represent the side BC as squared 4 + squared 4 2^2+2^2 Squared 2^2 +2^2 2^2. Or (for the second one) 2 squared 2 8 4 4 squared 2 Which is [a rational number] or [irrational number]