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## 1.1 Points, Lines & Planes

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**1.1 Points, Lines & Planes**UEQ: Can you recognize, measure and manipulate geometric figures and understand the concepts of equality and congruence? LEQ: How do you name geometric figures?**1.1 Points, Lines & Planes**Undefined Terms Terms that can only be explained using examples: Point is a location having neither shape or size Point A (capital) Line a bunch of points defined by min 2 points line m (lowercase) line AB line AB line AB Plane a flat surface made of points extending infinitely in all directions Plane K (capital italic) Plane ABC (order not *)**Points, Lines & Planes**Point Line Plane**In the figure below name:**Finite Plane • 4 Points: J K L M • Line: JK, JL, KL, JL, a • Plane: B, JKL, KLM, KLJ • … is a plane that has boundaries, it does not extend indefinitely. Example: a piece of paper**Intersecting geometric figures**Intersection of two or more figures is the set of points they have in common. Two (or more) lines AB & CD can intersect at a Point X Intersection 2 Lines D A X B C**Intersecting geometric figures**Two planes, W & Z can intersect and form a line AB Intersection 2 Planes**Intersecting geometric figures**A plane X intersects with a line m at point Z Intersection Plane & Line m Z X**Intersecting geometric figures**Which geometric figure is formed when 3 planes intersect? Answer: Either a point or a line Intersection 3 Planes**What are the following:**Spear Arrow Baton Golf ball Piece of paper Wall Edge of roof Vector X-axis Dumbbell Handrail**1.1 Points, Lines & Planes**UEQ: Can you recognize, measure and manipulate geometric figures and understand the concepts of equality and congruence? LEQ: How do you name geometric figures?