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प्रश्न
A mason has made a concrete slab. He needs it to be rectangular. In what different ways can he make sure that it is rectangular?
उत्तर
(i) By measuring each angle - Each angle of a rectangle is 90°
(ii) By measuring the length of the diagonals - Diagonals of a rectangle are equal.
(iii) By measuring the sides of rectangle - Each pair of opposite sides are equal.
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संबंधित प्रश्न
Explain why a rectangle is a convex quadrilateral.
In a parallelogram ABCD, the diagonals bisect each other at O. If ∠ABC = 30°, ∠BDC = 10° and ∠CAB = 70°. Find:
∠DAB, ∠ADC, ∠BCD, ∠AOD, ∠DOC, ∠BOC, ∠AOB, ∠ACD, ∠CAB, ∠ADB, ∠ACB, ∠DBC and ∠DBA.
Diagonals of a parallelogram ABCD intersect at O. AL and CM are drawn perpendiculars to BD such that L and M lie on BD. Is AL = CM? Why or why not?
Which of the following statement is true for a rectangle?
Its diagonals are equal.
Which of the following statement is true for a rectangle?
Its diagonals bisect each other.
In a rectangle ABCD, prove that ∆ACB ≅ ∆CAD.
Prove that quadrilateral formed by the intersection of angle bisectors of all angles of a parallelogram is a rectangle.
For which of the following figures, all angles are equal?
A parallelogram PQRS is constructed with sides QR = 6 cm, PQ = 4 cm and ∠PQR = 90°. Then PQRS is a ______.
In rectangle READ, find ∠EAR, ∠RAD and ∠ROD
