lesson
Proving a Quadrilateral Is a Rectangle Using Coordinates
Use coordinate geometry to prove that a quadrilateral is a rectangle by verifying right angles and parallel sides.
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This lesson is part of a track
Public learning track
Coordinate Proofs for Polygons
4 lessons
Goal
Use coordinate geometry to prove that quadrilaterals are parallelograms or rectangles, and compute areas of triangles from vertex coordinates.
4 lessons
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- Proving a Quadrilateral Is a Rectangle Using CoordinatesYou are here
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Learning standards covered
111.41(b)(2)(B)Texas Essential Knowledge and Skills (TEKS) · Math · 10th Gradederive and use the distance, slope, and midpoint formulas to verify geometric relationships, including congruence of segments and parallelism or perpendicularity of pairs of lines; and
Open Global Standard:OGM.11.GEO.6
111.41(b)(1)(G)Texas Essential Knowledge and Skills (TEKS) · Math · 10th Gradedisplay, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.
Open Global Standard:OGM.11.GEO.1
OGM.11.GEO.6OGM.11.GEO.1