Warm-up What is interesting about these triangles? 3 4 x y z 25 Find x, y & z.
Warm-up
Agenda Homework Review Midpoint Project Class work Page 765, Lessons 1-5 Homework
1-5 Study Guide
Practice 1-5
Midpoint Project Hand out graph paper and rulers Draw x-axis, y-axis Choose a random point in either upper quadrant Choose a random point in the opposite lower quadrant Locate the point’s coordinates (2, 4) (-4, -4)
Midpoint Project Use midpoint formula to determine midpoint coordinate (2, 4) (-4, -4) Mark midpoint Use ruler to draw line Are the 3 points collinear? (-1, 0)
Midpoint Project Use ruler to determine measure of line segment and distance to midpoint Use distance formula to check answers (2, 4) (-4, -4) (-1, 0)
Midpoint Project (2, 4) (-4, -4) (-1, 0) Fold paper by touching points Notice effect on midpoint
Class work Page 765, Lessons 1-5
Lesson 1-5
Homework Define the Ruler and Segment Addition Postulates in your own words. Use equations and diagrams as part of your explanation. Be prepared to hand it in for a grade.