Proving Lines are Parallel
Move the slider so that line g and line h are parallel.
How do you know that the two lines will be parallel?
Move the slider so that lines g and h become parallel.
How do you know that lines g and h are parallel?
Move the slider so that lines f and h become parallel.
How do you know that lines f and h are parallel?
Move the slider so that lines f and h become parallel.
How do know that lines f and h will be parallel?
Using the image above, which two lines can you tell are NOT parallel? Why?
Using the image above, assuming angles 1, 9, and 17 are congruent, which lines ARE parallel?
What is the sign for parallel?