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prove that triangles pqr and rsq are congruent.
given:
pq = rs, and

What value of x will make the triangles similar by the sss similarity theorem?

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.