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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? L EQ: How do you name geometric figures?
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 & PlanesUndefined Terms
Terms that can only be explained using examples:Point is a location having neither
shape or sizePoint A (capital)
Line a bunch of points defined by min 2 points line m (lowercase)
line ABline ABline 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:
4 Points: J K L MLine: JK, JL, KL, JL, aPlane: B, JKL, KLM, KLJ
… is a plane that has boundaries, it does not extend indefinitely. Example: a piece of paper
FinitePlane
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
Intersecting geometric figures
Intersection
2 Lines A
B
X
C
D
Two planes, W & Z can intersect and form a line AB
Intersecting geometric figures
Intersection
2 Planes
Intersecting geometric figures
Intersection
Plane & Line
A plane X intersects with a line m at point Z
X
m
Z
Intersecting geometric figures
Intersection
3 Planes
Which geometric figure is formed when 3 planes intersect?Answer: Either a point or a line
What are the following:SpearArrowBatonGolf ballPiece of paperWallEdge of roofVectorX-axisDumbbellHandrail
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?
