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Building Blocks of Geometry. 1. Opener a) Evaluate: for b = -4 b) Simplify: c) Simplify: d) What was the most popular boy name in 1997 (the year you were born)? What was the most popular girl name?. 2. Supplies
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Building Blocks of Geometry 1. Opener a) Evaluate: for b = -4 b) Simplify: c) Simplify: d) What was the most popular boy name in 1997 (the year you were born)? What was the most popular girl name?
2.Supplies • Take out the required school supplies to be checked (keep everything in the left corner on your desk) • We need for today • Pen or Pencil • Loose-Leaf Paper • Take out 10 index cards and place on the corner of your desk.
Quote of the Day Nature’s great book is written in mathematical symbols. GALILEO GALILEI
POINT An undefined term thought of as a location with no size or dimension.
LINE An undefined term thought of as a straight, continuous arrangement of infinitely many points extending forever in two directions.
PLANE An undefined term though of as a flat surface that extends indefinitely along it’s edges.
COLLINEAR On the same line.
COPLANAR On the same plane.
LINE SEGMENT Two points and all the points between them that are collinear with the two points.
END POINTS The point at either end of a segment or an arc, or the first point of a ray.
CONGRUENT Identical in shape and size.
BISECTS To divide into two congruent parts.
RAY A point on a line, and all the points of the line that lie on one side of this point.
3. Classwork Which tennis balls are coplanar?
Ex: 5. Notes Congruent Equal = Numbers AB - length Shapes What we CAN write: What we CAN’T write:
6. Notes H B D A C G F
7. Classwork Write down every congruency statement. H B D A C G F
D is the midpoint of BC H is the midpoint of FD A is the midpoint of DE 8. Notes Midpoint: The point on a segment that’s the same distance from both endpoints.
10. Homework • Homework #1 Q1 • Pg. 13 – Lesson 1.2: 1-10; 52-59; 85 (odd) • Pg. 19 - 1.3: 1-9; 33-35; 48; 63-66 (odd)