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# Math: Polygons

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Re: Math: Polygons [#permalink]

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28 Oct 2012, 06:14
Regular polygon's area can be calculated,other polygon's area can also be calculated using graph coordinates,but i have heard that polygon's area can be calculated using sides and external angles is it true?if it is what is the method?
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23 Dec 2012, 13:17
just a suggestion, adding kite properties to the first post will be helpful for others...
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Re: Math: Polygons [#permalink]

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28 Dec 2012, 07:31
Great compilation Bunuel..!This is indeed very helpful...Kudos
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Re: Math: Polygons [#permalink]

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10 Jul 2013, 23:06
Bumping for review*.

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13 Jul 2014, 08:47
Hello from the GMAT Club BumpBot!

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Re: Math: Polygons [#permalink]

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16 Nov 2014, 14:43
[quote="Bunuel"]POLYGONS
--------------------------------------------------------

A square is both a rhombus (equal sides) and a rectangle (equal angles) and therefore has all the properties of both these shapes, namely:
The diagonals of a square bisect each other.
• The diagonals of a square bisect its angles.
• The diagonals of a square are perpendicular.
• Opposite sides of a square are both parallel and equal.
• All four angles of a square are equal. (Each is 360/4 = 90 degrees, so every angle of a square is a right angle.)
• The diagonals of a square are equal.

It might be worth clarifying that the diagonals of rhombi or rectangles do not bisect their respective angles. The above section could be mistaken to suggest so since you mention that the list of properties is derived from a combination of rectangle and rhombus properties..
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29 Nov 2015, 02:03
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Math: Polygons [#permalink]

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28 Feb 2016, 08:37
Excellent Post.. Kudos +1

It would be awesome if there were practice questions with each section, on each topic. (free)
Re: Math: Polygons   [#permalink] 28 Feb 2016, 08:37

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# Math: Polygons

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