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प्रश्न
The following statement are true and false .
In a parallelogram, the diagonals are equal
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उत्तर
False
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संबंधित प्रश्न
Show that if the diagonals of a quadrilateral are equal and bisect each other at right angles, then it is a square.
In ΔABC and ΔDEF, AB = DE, AB || DE, BC = EF and BC || EF. Vertices A, B and C are joined to vertices D, E and F respectively (see the given figure). Show that
(i) Quadrilateral ABED is a parallelogram
(ii) Quadrilateral BEFC is a parallelogram
(iii) AD || CF and AD = CF
(iv) Quadrilateral ACFD is a parallelogram
(v) AC = DF
(vi) ΔABC ≅ ΔDEF.
The following statement are true and false .
If all the sides of a quadrilateral are equal it is a parallelogram.
If ABCD is a rhombus with ∠ABC = 56°, find the measure of ∠ACD.
Complete the following statement by means of one of those given in brackets against each:
If one angle of a parallelogram is a right angle, then it is necessarily a .................
PQRS is a quadrilateral, PR and QS intersect each other at O. In which of the following case, PQRS is a parallelogram?
PQ = 7 cm, QR = 7 cm, RS = 8 cm, SP = 8 cm
PQRS is a quadrilateral, PR and QS intersect each other at O. In which of the following case, PQRS is a parallelogram?
OP = 6.5 cm, OQ = 6.5 cm, OR = 5.2 cm, OS = 5.2 cm
ABCD is a parallelogram and E and F are the centroids of triangles ABD and BCDrespectively, then EF =
The diagonals of a parallelogram ABCD intersect at O. If ∠BOC = 90° and ∠BDC = 50°, then ∠OAB =
ABCD is a parallelogram and E is the mid-point of BC. DE and AB when produced meet at F. Then, AF =
