When using the given diagram, the following steps prove the Pythagorean theorem.

Step 1: Given yellow triangle abc

Step 2: Construct 3 triangles congruent to yellow triangle abc.

Step 3: (a + b)2 = c2 + 4(12ab)

Step 4: a2 + 2ab + b2 = c2 + 2ab

Step 5: a2 + b2 = c2

Which expression in the proof represents the area of each triangle?

A)4(1/2ab)
B)12ab
C)ab
D)2ab

Which change would make the diagram correct?

Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.

Why do metals "give up" their valence electrons?