Geometry Flashcards
1
Q
Congruence
A
Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.
2
Q
Similarity
(In the context of Geometry)
A
Two objects are similar if they have the same shape, or if one has the same shape as the mirror image of the other.
More precisely, one can be obtained from the other by uniformly scaling (enlarging or reducing), possibly with additional translation, rotation and reflection.
3
Q
What is significant about the Sine/Cosine of complementary angles?
A
The Sine of an angle is equal to the Cosine of its complement and vice versa.
For example:
~~~
sin(x) = cos(90-x)
~~~
