Geometry 2.5: Using Postulates and Diagrams

[size=150][color=#00ff00]REVIEW: 1&2: Draw a conclusion and name the Law.[/color][/size]
1. All stores sell something. Toys R Us is a store.
2. If Miles has money, then he can buy food. If Miles buys food, then he buys a sandwich.
[size=150]#3 Write in if-then form, and then determine the truth value. If false, state a counterexample.[/size]
3a)
All dogs have fleas.[br]
3b) converse
#3c) inverse
#3d) contrapositive[br]
Extra Review a)[br]Given this TRUE conditional, write another true statement:[br]If I'm sick, then I won't be there.
Extra Review b)[br]Given this TRUE conditional, write another false statement.[br]If the lights are not off, then it is not dark.
Use the applet below to confirm these postulates:[br][br]Postulate 2.1   Through any two points there exists exactly one line.Postulate 2.2   Through any three noncollinear points there exists exactly one plane.[br][br][size=150][color=#0000ff](Remember to move the diagram around to look at the figure.)[br][/color][/size][br][color=#ff0000]*Can you draw a line through G and E?[br]*Can you draw a line through G, A, and C?[br]*Can you draw a line through G, F, and D?[/color][br][br][color=#9900ff]>Can you draw a plane through E, F, and D?[br]>Can you draw a plane through G, C, and E?[br]>Can you draw a plane through B, A, and C? (GeoGebra has trouble here...why?)[br]>Can you draw a plane through E, B, A, and C? (You'll have to choose 3 of the points to use [icon]/images/ggb/toolbar/mode_planethreepoint.png[/icon].)[br]>Can you draw a plane through E, A, G, and C?[/color]
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Information: Geometry 2.5: Using Postulates and Diagrams