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प्रश्न
The following statement are true and false .
If all the angles of a quadrilateral are equal, it is a parallelogram .
उत्तर
True
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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 .
In a parallelogram, the diagonals intersect each other at right angles .
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
The bisectors of the angle of a parallelogram enclose a
The figure formed by joining the mid-points of the adjacent sides of a quadrilateral is a
In a parallelogram ABCD, if ∠DAB = 75° and ∠DBC = 60°, then ∠BDC =
