Polygons 3-D Shapes Angles Turns or Symmetry Geometry in the real world 10 20 30 40 50.
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Transcript of Polygons 3-D Shapes Angles Turns or Symmetry Geometry in the real world 10 20 30 40 50.
Polygons 3-D Shapes
Angles Turns or Symmetry
Geometry in the real world
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
Show the number with your fingers…
1. Visualize an octagonal prism.
2. How many faces does this prism have?
10
Examine this triangular pyramid.
How many faces? How many edges?
How many vertices?
5 faces
9 edges
6 vertices
The polygon on the right is a convex polygon. What kind of polygon is displayed on the left?
A concave polygon
Which shape would you describe as having corners that are:a) All right angles?b) Less than a right angle?c) More than a right angle
A
If A is the original rectangle, would we describe the turn as clockwise or counter clockwise?
clockwise
How could we describe the turn made by the arms on the clock.
a) a quarter clockwise turnb) a half clockwise turn
c) a quarter counter clockwise turn
a quarter clockwise turn
Appoint two people on your team to stand up and model 4 clockwise turns. What type of turn did your team mates make after the fourth turn?
How many reflective lines of symmetrydoes this scalene triangle have?
No lines of reflective symmetry