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Standards/Math/West Virginia/M.GHS.9

M.GHS.9

M.GHS High School Geometry
M.GHS.1
M.GHS.10
M.GHS.11
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M.GHS.6
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M.GHS.9
M.GHS.AP
M.GHS.C
M.GHS.CA
M.GHS.CPC
M.GHS.E3D
M.GHS.MG
M.GHS.SPT

Prove theorems about lines and angles. Theorems include: vertical angles are congruent; when a transversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segment’s endpoints.

Khan Academy Resources
Line and angle proofsProofs with transformationsProofs with transformations
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