Geometry

2D Coordinate Geometry

Determining Coordinates

         

ABCABC is a right triangle with ABC=90 \angle ABC = 90 ^ \circ .

If A=(4,9) A = ( 4, 9 ) and B=(11,14) B = ( 11, 14) , which of the following is a possible coordinate for CC?

The point P:(4,26) P:(4, -26) is reflected across the origin, and now becomes the point P:(a,b) P':(a,b) .

What is a+b a + b ?

3 out of 4 vertices of a square have coordinates (5,6),(5,9) ( 5, 6), (5, 9) and (8,6) (8, 6 ) . What is the coordinate of the last vertex?

ABCDABCD is a parallelogram. If A=(0,0) A = (0,0) , B=(4,9) B = ( 4, 9 ) , and C=(10,14) C = ( 10, 14 ) , what are the coordinates of D D ?

ABCDABCD is a quadrilateral such that ABCDAB \parallel CD . A=(0,0)A = (0,0), B=(2,9)B = (2, 9), C=(13,20)C = ( 13, 20 ) , which of the following is a possible coordinate of DD?

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