Construct a quadrilateral with two pairs of parallel sides of

The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle.

A rectangle is 14 cm wide and 48 cm long. Find the measures of the acute angle between its diagonals.

If two parallel lines are cut by a transversal, then the interior angles on the same side of the transversal are

If one pair of opposite sides of a quadrilateral are parallel and the other pair is equal in length then is the quadrilateral parallelogram?

Draw a pair of quadrilaterals, where the first quadrilateral is congruent to the second quadrilateral.

PQRS is a quadrilateral with PS parallel to QR. The perimeter of PQRS is 3 m. The length of PQ is 1 m and the length of PS is x m. The

A parallelogram has a 70 degree angle and sides 6 cm and 10 cm long. How long are its diagonals? Round to the nearest tenth.

Draw a pair of quadrilaterals, where the first quadrilateral is congruent to the second quadrilateral.

Take a blank piece of paper. Use a ruler and compass to construct a triangle that has one side of length of 6 inches, one side of length 5 inches, and one

Construct trapezium ABCD so that BC equals 6 cm, AB equals 3 cm, angle B equals 80^{o} and angle C equals 70^{o}. Measure BD.

The diagonals of a parallelogram intersect at a 42 degree angle and have lengths of 12 and 7cm. How do you find the lengths of the sides of the parallelogram?

You know that the sizes of all the angles in a triangle add up to 180 degrees. Justify that the sum of the sizes of all the angles in every quadrilateral is