Draw polygons in the coordinate plane given coordinates for the vertices; use coordinates to find the length of a side joining points with the same first coordinate or the same second coordinate. Apply these techniques in the context of solving real-world and mathematical problems.
In plain words: Students draw polygons from the coordinates of their vertices and find the length of a side whose endpoints share an x- or a y-coordinate.
Quick picks
- Common mistake
- Subtracting the wrong way across an axis: from (−3, 4) to (5, 4) is 8 units, not 5 − 3 = 2.
Example Problems
Triangle ABC has the following vertices:
A
B
C
Is triangle ABC a right triangle?
A
B
C
Is triangle ABC a right triangle?
Triangle ABC has the following vertices:
A
B
C
Is triangle ABC a right triangle?
A
B
C
Is triangle ABC a right triangle?
Triangle ABC has the following vertices:
A()
B()
C()
Is triangle ABC a right triangle?
A()
B()
C()
Is triangle ABC a right triangle?
Khan Academy ResourcesQuadrilateral problems on the coordinate planeQuadrilateral problems on the coordinate planeDrawing polygons with coordinatesArea and perimeter on the coordinate planeParallelogram on the coordinate planeCoordinates of rectangle exampleExample of shapes on a coordinate planeArea of a parallelogram on the coordinate planeDrawing a quadrilateral on the coordinate plane exampleDimensions of a rectangle from coordinatesCoordinates of a missing vertex
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