To find percent of a number,
1- multiply
2- divide
the number by the fraction or decimal equivalent of the
1- number
2- percent.
To find an unknown percent or part, solve a proportion comparing the
1- part
2- percent
to the ratio of
1- percent
2- part
to whole.

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte