Bellwork – 1/20/17
Quiz 2 Transformation rules Vector component form Lines of symmetry Sequence of transformations Corresponding parts of congruent figures are congruent
4.1 Angles formed by Intersecting Lines 1/20/17 Geometry 4.1 Angles formed by Intersecting Lines
When two lines intersect, the angles that are opposite each other are vertical angles. Recall that a linear pair is a pair of adjacent angles whose non-common sides are opposite rays. So, when two lines intersect, the angles that are on the same side of a line form a linear pair. You have written proofs in two-column and paragraph proof formats. Another type of proof is called a flow proof. A flow proof uses boxes and arrows to show the structure of the proof. The steps in a flow proof move from left to right or from top to bottom, shown by the arrows connecting each box. The justification for each step is written below the box.
1/20/17 CW 3 Packet Due Friday 1/20/17
Bellwork – 1/23/17
4.2 Transversals and Parallel Lines 1/23/17 Geometry 4.2 Transversals and Parallel Lines
A transversal is a line that intersects two coplanar lines at two different points. In the figure, line t is a transversal. The table summarizes the names of angle pairs formed by a transversal.
Packet Due Wednesday 1/25/17 1/23/17 CW 4 Packet Due Wednesday 1/25/17
4.3 Proving Lines are Parallel 1/23/17 Geometry 4.3 Proving Lines are Parallel
You form the converse of and if-then statement "if p, then q" by swapping p and q. The converses of the postulate and theorems you have learned about lines cut by a transversal are true statements
1/23/17 Geometry 4.4 Perpendicular Lines
4.5 Equations of Parallel & Perpendicular Lines 1/23/17 Geometry 4.5 Equations of Parallel & Perpendicular Lines
The contents in this PowerPoint were taken from Houghton Mifflin Harcourt Geometry.