Tag
Proof
Entries tagged proof.
2 entries
Concept
Congruence and similarity
Two figures are congruent when one can be placed exactly on the other by moving it without stretching, and similar when one is an exact scaled copy of the other, same shape, possibly different size.
7 min
ConceptThe Pythagorean relationship
In any right triangle, the area of the square on the hypotenuse always equals the combined area of the squares on the other two sides, a fact provable by rearranging area rather than by measuring it.
7 min