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Line A straight path that goes on forever in both directions; it is named by any two points on the line. ZY ZY or YZ
Line Segment A piece of a line with two endpoints; it is named by its endpoints A B AB or BA
Ray A piece of a line with one endpoint and continues forever in the other direction; its named by its endpoint and another point on the ray R T RT
Parallel Lines, segments, or rays that are always the same distance apart and NEVER intersect
Intersecting Lines, segments, or rays that cross each other
Perpendicular Lines, segments, or rays that intersect at 90 0 (right) angles
Skew Lines, segments, rays that will never intersect because they are in different planes (THINK…car on the bridge compared to a boat on the water)
Angle Two rays that share the same endpoint; measured in degrees (from 0 to ) K J MJ KJM MJK How to name this angle:
Vertex The point where 2 rays meet to form an angle Vertex Y Q N
Interior Point A point that lies inside the two rays of an angle C
Exterior Point A point that lies outside the two rays of an angle B
Congruent Objects that are exactly the same shape and size. When 2 shapes are exactly the same, then their parts (sides, angles, etc.) are the same. A B C X Y Z These triangles are congruent!
How Many Degrees in a Triangle? The three angles in a triangle add up to So… if angle A is 90 0, and angle B is 30 0, then angle C will be = 60 0 A C B
How Many Degrees in a Quadrilateral? The four angles in any quadrilateral add up to Examples of quadrilaterals:
Circle A flat, closed curve where every point on the edge is the same distance from the center center
Radius A straight segment drawn from the center of a circle to a point on the outside edge; half the diameter **There are an infinite # of radii in a circle!
Diameter A straight segment drawn from one side of a circle to another THROUGH the center; twice the radius **There are an infinite # of diameters in a circle!
Circumference The distance around the edge of a circle found by multiplying Pi (or Π) by the diameter C = Π x d
Pi (or Π) Ratio of the circumference of a circle to the diameter; Every circles circumference divided by its diameter is Π Approximately 3.14
Prism A 3-D shape with 2 congruent bases; all other faces are rectangles Prisms are named by the shape of their bases Triangular prism Square prism
Pyramid A 3-D shape with one base and 3 or more triangular sides that meet at a vertex; pyramids are named by their base Square base, so this is a square pyramid
Three-dimensional Shapes (3D) These shapes are solid or hollow, you could hold them in your hand. They have three dimensions: length, width and height.
Geometry Points, Lines, and Shapes!. Plane plane A flat surface that stretches into infinity.
Geometry Point Line Line segment Ray Plane Parallel lines Intersecting lines Angles.
Geometry Jeopardy. Solids Polygons Lines & Angles Figures in Motion Volume, Area & Perimeter $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200.
Objective: To describe properties of solid shapes such as perpendicular and parallel lines, faces and edges.
GEOMETRY Geometry is all about shapes and their properties.
Geometry Honors Section 9.1 Segments and Arcs of Circles.
Points Lines Planes Circles Polygons Congruency Similarity.
Career & Technical Education Drafting – Product Design & Architecture Geometric Construction & Terms.
Polygons by Amy Pihlainen. Polygons The word polygon means many angles A two dimensional object A closed figure.
The shapes below are examples of regular polygons. Look at the sides and angles of each shape. Octagon rectanglehexagon triangle The following shapes.
Draw six segments that pass through every dot in the figure without taking your pencil off the paper. Session 55.
A chord that goes through the center of a circle diameter.
10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt VocabularyShapes.
Angles Grade 7 The Shape of Design. Point An exact location on a plane is called a point. Line Line segment Ray A straight path on a plane, extending.
One-, Two-, Three-Dimensional Shapes Duane B. Karlin CEP 811 June 12, 2011.
Partial-differences method A way to subtract in which differences are computed separately for each place (ones, tens, hundreds, and so on). The partial.
Line- a straight path that goes in two directions without ending. A B AB Read: “Line AB”
Area of Polygons and Circles Chapter Angle Measures in Polygons The sum of the measures of the interior angles of a polygon depends on the number.
Chapter 1.7 and 12.1 Thee-Dimensional Figures and their representations.
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Splash Screen Chapter 10 Geometry Click the mouse or press the space bar to continue. Chapter 10 Geometry Click the mouse or press the space bar to continue.
Section 10.1 Circles Notes What is a CIRCLE? A CIRCLE is the set of all points in a plane equidistant from a given point.
Lesson #1 Points, Lines, Planes, and Circles. Lesson Goals Students will be able to define a point, a line, a line segment, a ray, and a plane SWBAT define.
3.1 Identify Pairs of Lines and Angles. Parallel Lines Coplanar Do not intersect Segments and rays are parallel if they lie on parallel lines. A D C.
Lines of Symmetry pg. 5 (LT #1). Reflection Symmetry When a graph or a picture can be folded so that both sides will perfectly match. LINE of SYMMETRY:
Proving Statements in Geometry Inductive Reasoning.
CONSTRUCTING LINES, SEGMENTS, AND ANGLES MCC9-12.G.CO.12.
Chapter 5: Plane Geometry Regular Math. Section 5.1: Points, Lines, Planes, and Angles A point names a location. A line is perfectly straight and extends.
Nets Nets A net is a pattern that you cut out and fold to form a 3 - dimensional figure.
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