Which angle is the corresponding angle of ∠2?
Which angle looks similar in its relationship between the other parallel line and the transversal?
Which angle is the alternate interior angle to ∠1?
Alternate interior angles are on alternate parts of the transversal, but still on the interior of the parallel lines.
What do we call a line that intersects with two parallel lines?
When we go across something, we "transit" over it.
Which two angles are supplementary?
Make sure that both angles stay along the same transversal.
∠2 and ∠4 are supplementary, but so are ∠3 and ∠5.
Which three angles add up to 180°?
Corresponding and vertical angles will get you far.
∠1, ∠2, and ∠3 add up to 180°.
If ∠3 has a measure of 70°, what is the measure of ∠5?
Are ∠3 and ∠5 vertical? Corresponding? Alternate interior or exterior?
The measure of ∠5 is 110°.
If ∠3 has a measure of 70° and ∠1 ≅ ∠2, what would be the measure of ∠4?
What is the relationship of ∠3 to angles ∠1 and ∠2? What is the relationship of ∠2 to ∠4?
The measure of ∠4 would be 125°.
What are the values of x and y?
What are corresponding and supplementary angles?
x = 23, y = 40
Make it rain.