TRUE
No
true-apex
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!
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.
No
true-apex
In geometry, deductive rules can be used to prove conjectures.
The radius ratio rule provides guidelines on the coordination numbers and structures of ionic solids based on the sizes of cations and anions. For example, in the case of octahedral coordination, a ratio of r+/r- between 0.414 and 0.732 signifies stable structures. These rules help predict the coordination geometry and packing arrangement of ions in ionic solids.
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.