Is this quadrilateral a parallelogram, rectangle, rhombus or square? Which facts are enough?

Grade 10 Math Worksheet - Challenge Me

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Circle the best answer, or write your answer on the line.

  1. Esme's window is parallelogram DFGH, with diagonals crossing at Q. DQ = (3x − 5) cm and FH = (2x + 26) cm. How long is FH if it is a rectangle, in cm?

  2. Jun's picture frame is parallelogram DFGH, with diagonals crossing at Q. DQ = (3x − 7) cm and FH = (2x + 10) cm. How long is FH if it is a rectangle, in cm?

  3. Luz's table top is parallelogram DFGH, with diagonals crossing at Q. DQ = (3x − 2) cm and FH = (2x + 20) cm. How long is FH if it is a rectangle, in cm?

  4. Milo's craft frame DFGH is a parallelogram. DF = (3x − 4) cm and FG = (x + 8) cm. What is its perimeter when DFGH is a rhombus, in cm?

  5. Noah's tile DFGH is a parallelogram. DF = (6x + 2) cm and FG = (2x + 22) cm. What is its perimeter when DFGH is a rhombus, in cm?

  6. Pia's garden bed DFGH is a parallelogram. DF = (4x − 3) cm and FG = (2x + 9) cm. What is its perimeter when DFGH is a rhombus, in cm?

  7. Ren's sticker DFGH is a parallelogram. DF = (2x + 7) cm and FG = (4x − 5) cm. What is its perimeter when DFGH is a rhombus, in cm?

  8. Zee hears a claim: "If a quadrilateral's diagonals cross at right angles, it is a rhombus." Which shape shows the claim is false?

    • A long rectangle
    • A square
    • A kite with two short and two long sides
    • An isosceles trapezoid
  9. Ari hears a claim: "If one pair of opposite sides is parallel and the other pair is equal, it is a parallelogram." Which shape shows the claim is false?

    Use the picture in question 8.

    • A rectangle
    • A rhombus
    • An isosceles trapezoid
    • A kite
  10. Bo hears a claim: "If a quadrilateral has four equal sides, it is a square." Which shape shows the claim is false?

    Use the picture in question 8.

    • A square
    • A rhombus with no right angle
    • A long rectangle
    • A kite
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Is this quadrilateral a parallelogram, rectangle, rhombus or square? Which facts are enough?

Answer Key - Grade 10 Math Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.

  1. Esme's window is parallelogram DFGH, with diagonals crossing at Q. DQ = (3x − 5) cm and FH = (2x + 26) cm. How long is FH if it is a rectangle, in cm?

    44
  2. Jun's picture frame is parallelogram DFGH, with diagonals crossing at Q. DQ = (3x − 7) cm and FH = (2x + 10) cm. How long is FH if it is a rectangle, in cm?

    22
  3. Luz's table top is parallelogram DFGH, with diagonals crossing at Q. DQ = (3x − 2) cm and FH = (2x + 20) cm. How long is FH if it is a rectangle, in cm?

    32
  4. Milo's craft frame DFGH is a parallelogram. DF = (3x − 4) cm and FG = (x + 8) cm. What is its perimeter when DFGH is a rhombus, in cm?

    56
  5. Noah's tile DFGH is a parallelogram. DF = (6x + 2) cm and FG = (2x + 22) cm. What is its perimeter when DFGH is a rhombus, in cm?

    128
  6. Pia's garden bed DFGH is a parallelogram. DF = (4x − 3) cm and FG = (2x + 9) cm. What is its perimeter when DFGH is a rhombus, in cm?

    84
  7. Ren's sticker DFGH is a parallelogram. DF = (2x + 7) cm and FG = (4x − 5) cm. What is its perimeter when DFGH is a rhombus, in cm?

    76
  8. Zee hears a claim: "If a quadrilateral's diagonals cross at right angles, it is a rhombus." Which shape shows the claim is false?

    • A long rectangle
    • A square
    • A kite with two short and two long sides
    • An isosceles trapezoid
  9. Ari hears a claim: "If one pair of opposite sides is parallel and the other pair is equal, it is a parallelogram." Which shape shows the claim is false?

    Use the picture in question 8.

    • A rectangle
    • A rhombus
    • An isosceles trapezoid
    • A kite
  10. Bo hears a claim: "If a quadrilateral has four equal sides, it is a square." Which shape shows the claim is false?

    Use the picture in question 8.

    • A square
    • A rhombus with no right angle
    • A long rectangle
    • A kite