unit 9: geometry – 6 th grade lesson 6: solid figures
TRANSCRIPT
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UNIT 9
: GEOMETR
Y – 6
TH
GRADE
L ES
SO
N 6
: S
OL I D
FI G
UR
ES
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CORNELL NOTES HEADER
Topic: Geometry 6th Grade (Unit 9 pg. 6)
E. Q.: How are two-dimensional and three-dimensional figures related?
Name: _____________________________Date: _____________________________Class: _____________________________
Chp. 10 Lesson 5 –Solid Figures
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PARTS OF THREE DIMENSIONAL FIGURES
face – the polygons that form the solid figure.
edge – the segments where the faces of a figure meet.
vertex – the point where edges meet. (The plural is vertices.)
edges
face
vertex
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COUNTING FACES, EDGES & VERTICES EX.Ex. Count the number of faces, edges, and vertices of the
square pyramid shown.
faces:
5
edges:
8
vertices:
5
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CLASSIFYING SOLIDS
prism – a solid with two parallel bases that are congruent polygons.
Ex. rectangular prism and triangular prism
cylinder – a solid with two parallel bases that are congruent circles.
Ex.
pyramid – a solid made with polygons. The base can be any polygon, and the other
polygons are triangles that share a common vertex.
Ex.
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CLASSIFYING SOLIDS CONTINUED
cone – a solid with one circular base and a vertex that is not in the same plane.
Ex.
sphere – the set of all points that are the same distance from a pointed called the
center.
Ex.
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HOW TO DRAW A SOLID
Draw a triangular prism. (textbook pg. 542)
(1) Draw the congruent bases
(2) Connect the corresponding vertices.
(3) Make hidden lines by partially erasing lines.