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Exercise 11.4 1. The diagonals of a quadrilateral are equal and each is 12 cm long. The diagonals bisect each other at right angles. What special name can you give to this quadrilateral? 2. In the given figure, PQRS is a rhombus and \angle PRS = 45^{\circ}. Find \angle PQR. 3. The sides of a rectangle are in the ratio 3 : 4. If its perimeter is 56 cm, find its sides. 4. Calculate the side of a square field, whose perimeter is 136 m. 5. The length of a parallelogram is greater than its breadth by 5 cm. If its perimeter is 70 cm find the length and breadth.

          Exercise 11.4
1. The diagonals of a quadrilateral are equal and each is 12 cm long. The diagonals bisect each other at right angles. What special name can you give to this quadrilateral?
2. In the given figure, PQRS is a rhombus and \angle PRS = 45^{\circ}. Find \angle PQR.
3. The sides of a rectangle are in the ratio 3 : 4. If its perimeter is 56 cm, find its sides.
4. Calculate the side of a square field, whose perimeter is 136 m.
5. The length of a parallelogram is greater than its breadth by 5 cm. If its perimeter is 70 cm find the length and breadth.

Exercise 11.4
1. The diagonals of a quadrilateral are equal and each is 12 cm long. The diagonals bisect each other at right angles. What special name can you give to this quadrilateral?
2. In the given figure, PQRS is a rhombus and ∠PRS = 45^∘. Find ∠PQR.
3. The sides of a rectangle are in the ratio 3 : 4. If its perimeter is 56 cm, find its sides.
4. Calculate the side of a square field, whose perimeter is 136 m.
5. The length of a parallelogram is greater than its breadth by 5 cm. If its perimeter is 70 cm find the length and breadth.

Added by Brian B.

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