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- Forum f=2&t=40693 E vectorPlaneADD
- Pent. interior angle sum
- Review Activity #2
- DilationP2Answer
- 선분의 수직 이등분 선 상의 점으로부터 선분의 양 끝점까지의 거리는 같다.(Given a line segment, distances from a point on the perpendicular bisector to the each end point of the line segment are same.)
- NS3-02-CYU5 (Rationalize denominators)