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Practice Time 3E

1. Construct a quadrilateral PEAR, where PE = 10 cm, EA = 7.5 cm, AR = 5 cm, RP = AP = 6 cm.
2. Construct a quadrilateral PQRS in which PQ = 6 cm, PS = 5 cm, RS = 7 cm, PR = 7 cm, QS = 7.5 cm.
3. Construct a quadrilateral MATH in which MA = 4.1 cm, AT = 3.8 cm, MH = 3.1 cm, diagonal
MT = 7.5 cm and diagonal AH = 4.9 cm.
4. Construct a quadrilateral ABCD, where AB = 5 cm, BC = 4 cm, ∠C = 135°, ∠B = 60° and ∠A = 90°.

5. Construct a quadrilateral GOLD such that GO = 5 cm, OL = 4.2 cm, GD = 3.5 cm, ∠G = 90° and ∠O = 60°.
6. Construct a parallelogram DICE, in which diagonal DC = 3.8 cm, diagonal IE = 4.6 cm and the angle
between DC and IE = 50°.
7. Construct a parallelogram ABCD such that AB = 4.8 cm, BC = 3.2 cm and ∠B = 120°.
8. Construct a rectangle BIKE in which IK = 5.2 cm and diagonal BK = 6.4 cm. Measure the other side
of the rectangle.
9. Construct a square ABCD in which AB = 3.5 cm.

10. Draw a rhombus whose diagonals are 5.2 cm and 6.4 cm long.
11. Construct a square DEBT whose diagonal DB = 6 cm.
12. Construct a rhombus whose one side is 5 cm and one angle is 45°.

maths fun
1. Take an origami sheet and draw a square with a suitable measure on it.
2. Cut out the square and fold it in half and unfold it.
3. Fold the bottom left and bottom right edges towards the centre crease. It will look like a kite shape.
4. Fold the top of the kite (small triangular flap) downwards.
2
5. Fold the tip of the kite back up, approximately of the way. The protruding triangle will be the rabbit’s tail.
6. Fold the model in half. 3
7. Rotate clockwise a quarter turn.
8. Cut the top crease a little less than half the length of the paper.
9. Fold the two flaps upwards to make ears.
10. Curl the ears and decorate with eyes.

81 Quadrilaterals