Pq is the perpendicular
bisector of ab
in the construction shown, the two arcs with points p and q have the same radius. what must be true of po?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

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What is the product? a-3/15a × 5/a-3