Which lines are parallel? Check all that apply.







What must be true for lines a and b to be parallel lines? Select two options.





If x = 10, which lines are parallel? Check all that apply.







What is the measure of angle 1?

Which is enough information to prove that ?





Parallel lines t and u are cut by two transversals, r and s, which intersect line u at the same point. What is the measure of angle 2?

If and , which describes all the lines that must be parallel?

Which is enough information to prove that ?





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