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Is quadrilateral ABCD a rhombus?

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Re: Is quadrilateral ABCD a rhombus?  [#permalink]

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New post 18 Jun 2018, 20:35
manishk30 wrote:
Bunuel wrote:
Thought about this again: D it is.

Well:
(1) True for square or for rhombus but every square is a rhombus, so sufficient
(2) Again true for square or for rhombus but every square is a rhombus, so sufficient

D



Just one question if you could help me.
Are not diagonals of rectangle perpendicular bisectors of each other. I know that they are not equal but they are at 90 degrees to each other and divide the diagonals in equal halves.


Hello

Diagonals of a rectangle ARE EQUAL and ARE bisectors of each other, but they are NOT necessarily perpendicular bisectors.
A rectangle in which diagonals intersect at perpendicular (90 degrees) becomes a square
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Re: Is quadrilateral ABCD a rhombus?  [#permalink]

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New post 01 Nov 2018, 07:02
Bunuel wrote:
Thought about this again: D it is.

Well:
(1) True for square or for rhombus but every square is a rhombus, so sufficient
(2) Again true for square or for rhombus but every square is a rhombus, so sufficient

D


Bunuel, following your logic, is it true that every rectangle is parallelogram?

also if I have a square this means that it is also a rectangle, a rhombus and a parallelogram, right?
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Re: Is quadrilateral ABCD a rhombus?  [#permalink]

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New post 01 Nov 2018, 07:18
1
mrjoe1 wrote:
Bunuel wrote:
Thought about this again: D it is.

Well:
(1) True for square or for rhombus but every square is a rhombus, so sufficient
(2) Again true for square or for rhombus but every square is a rhombus, so sufficient

D


Bunuel, following your logic, is it true that every rectangle is parallelogram?

also if I have a square this means that it is also a rectangle, a rhombus and a parallelogram, right?

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Re: Is quadrilateral ABCD a rhombus? (1) Line segments AC and BD  [#permalink]

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New post 07 Jul 2019, 19:12
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Re: Is quadrilateral ABCD a rhombus? (1) Line segments AC and BD   [#permalink] 07 Jul 2019, 19:12

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