Is this quadrilateral a parallelogram, rectangle, rhombus or square? Which facts are enough?
Grade 10 Math Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.
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?
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?
Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DQ = (3x − 7) cm; FH = (2x + 10) cm. Unmarked parts are shaded gray. Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DQ = (3x − 7) cm; FH = (2x + 10) cm. Unmarked parts are shaded gray. D F G H Q (3x − 7) cm (2x + 10) cm Not to scale Kira's door is parallelogram DFGH, with diagonals crossing at Q. DQ = (4x − 9) cm and FH = (2x + 24) cm. How long is FH if it is a rectangle, in cm?
Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DQ = (4x − 9) cm; FH = (2x + 24) cm. Unmarked parts are shaded gray. Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DQ = (4x − 9) cm; FH = (2x + 24) cm. Unmarked parts are shaded gray. D F G H Q (4x − 9) cm (2x + 24) cm Not to scale 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?
Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DF = (3x − 4) cm; FG = (x + 8) cm. Unmarked parts are shaded gray. Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DF = (3x − 4) cm; FG = (x + 8) cm. Unmarked parts are shaded gray. D F G H Q (3x − 4) cm (x + 8) cm Not to scale 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?
Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DF = (6x + 2) cm; FG = (2x + 22) cm. Unmarked parts are shaded gray. Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DF = (6x + 2) cm; FG = (2x + 22) cm. Unmarked parts are shaded gray. D F G H Q (6x + 2) cm (2x + 22) cm Not to scale 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?
Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DF = (4x − 3) cm; FG = (2x + 9) cm. Unmarked parts are shaded gray. Sketch, not to scale: quadrilateral DFGH (D bottom left, F bottom right, G top right, H top left), diagonals DG and FH crossing at Q. Only these facts are marked: both pairs of opposite sides parallel; DF = (4x − 3) cm; FG = (2x + 9) cm. Unmarked parts are shaded gray. D F G H Q (4x − 3) cm (2x + 9) cm Not to scale Four small shapes drawn in a row, each with its equal sides, parallel sides and diagonals marked. Four small shapes drawn in a row, each with its equal sides, parallel sides and diagonals marked. Tala hears a claim: "If a quadrilateral's diagonals are equal, it is a rectangle." Which shape shows the claim is false?
- An isosceles trapezoid
- A rhombus
- A square
- A kite
Zee hears a claim: "If a quadrilateral's diagonals cross at right angles, it is a rhombus." Which shape shows the claim is false?
Use the picture in question 7.
- An isosceles trapezoid
- A square
- A long rectangle
- A kite with two short and two long sides
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 7.
- A kite
- A rectangle
- An isosceles trapezoid
- A rhombus
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 7.
- A square
- A rhombus with no right angle
- A long rectangle
- A kite