By: Ms. Rozelle
8th Grade Math
Intersecting VS Perpendicular
═ Are they the same??
═ Noooo!
═ Perpendicular lines intersect at a right angle!
(90 degrees)
═ Intersecting lines cross each other.
═ Are all perpendicular lines intersecting lines?
═ Are all intersecting lines perpendicular lines?
Skew VS Coplanar
═ Skew lines do not lie on the same plane!
═ Coplanar lines do!
═ Can skew lines also be intersecting or
perpendicular lines?
═ Can coplanar lines also be intersecting or
perpendicular lines?
Parallel VS Coincidental
═ Parallel lines lie in the same plane but never
intersect!
═ Coincidental lines have equivalent linear
equations and overlap at EVERY point!
═ Coincidental = One line on top of the other
═ Can skew lines also be coincidental lines?
═ Can parallel lines also be skew lines?
Equilateral VS Isosceles VS Scalene
═ Equilateral Triangle?? All sides are equal!
═ Isosceles Triangle?? Triangle with two equal
sides! Angles opposite the equal sides are also
equal.
═ Scalene Triangle?? Has three unequal sides!
Geometry Map Project
Lines, Angles, & Triangles!
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Your task is to design a map that includes several different kinds of lines, angles
and triangles. You can choose your own theme for your map. Your map can be
of a town, your neighborhood or a made up place. It must however include the
following:
- Title of your town/neighborhood/made up place
- Two sets of streets that are parallel
- Two sets of streets that are perpendicular
- Two sets of streets that are Coincidental Lines
- One street that intersects another street to form an obtuse angle
- One street intersects another to form an acute angle
- One street that is a line segment
- One street that is a line
- One street that is a ray
- An ice cream parlor in the shape of an equilateral triangle
- A Pool that is in the shape of a scalene triangle
- A Pizza Place in the shape of a Isosceles triangle
Once your map is completed you are to write out five directions from one place
to another. Each direction must have one of these terms: parallel, intersecting or
perpendicular. These directions should be able to get your teacher and classmates
from one place to another without getting lost!