false
No they cannot. For example, in three dimensions, the angles of a triangle need not add to 180 degrees.
yes
False. The rules and objects of geometry do really match the everyday world.
Yes, the rules and objects of geometry are designed to match the everyday world as much as possible.
No
true-apex
No. The rules of two dimensional geometry can only be used for two dimensional geometry. You can take the basic principles of two dimensional geometry and alter them slightly to be able to apply to three dimensional solids
TRUE
false
false!! (apex)
it's false on apex
No they cannot. For example, in three dimensions, the angles of a triangle need not add to 180 degrees.
In geometry, deductive rules can be used to prove conjectures.
The first rule of geometry..... do not talk about geometry. The second rule of geometry..... DO NOT TALK ABOUT GEOMETRY hahah But seriously you'll have to be a bit more specific here cos there's too many geometric rules to list!
Theorems
Theorems.