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Geometry · Chapter 9 · Lesson 9.5 · Printable PDF

Classifying Figures from Coordinates Worksheet with Answer Key

7 problems on classifying figures from coordinates: midpoints of diagonals, slopes, lamp post triangles, kites, ordering vertices, a square claim, and a leaning frame. 2 pages, with a worked answer key.

7 problems2 pagesanswer key
Printable Classifying figures from coordinates worksheet with answer key - Geometry (Page 1 PDF preview)
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What's on the worksheet

  1. Find the midpoints of the diagonals and decide whether each quadrilateral is a parallelogram.
    A(1, 1), B(6, 2), C(8, 6), D(3, 5)A(-2, 0), B(3, -1), C(5, 4), D(-1, 4)A(0, -3), B(4, 1), C(2, 5), D(-2, 1)A(-4, 2), B(0, -2), C(3, 3), D(-2, 6)
  2. Decide whether a triangle of lamp posts is right or isosceles and find its measures.
  3. Show a toy kite frame is a kite but not a rhombus.
  4. Explain why Noah's four points do not make a quadrilateral in that order and give a correct order.
  5. Give a quadrilateral that shows Maya's claim about diagonals is wrong.
  6. Use slopes to show a parallelogram is neither a rectangle nor a rhombus.
  7. Follow a hinged frame of four equal rods as it leans.

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Classifying figures from coordinates: the lesson ›

More Chapter 9 worksheets: Coordinate geometry and coordinate proof