Kellie is given the following information:If two lines are perpendicular, then they intersect at a right angle. Lines A and B are perpendicular.She concludes that lines A and B intersect at a right angle. Which statements are true? Check all that apply.She used inductive reasoning.She used the law of detachment.Her conclusion is valid.The statements can be represented as "if p, then q and if q, then r."Her conclusion is true.