Perpendicular lines - Revision history

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New page: '''Perpendicular lines''' are lines which intersect to form four <math>90^o</math> angles.

New page

'''Perpendicular lines''' are lines which intersect to form four <math>90^o</math> angles.

← Older revision		Revision as of 02:56, August 3, 2017
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−	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|90<sup>o</sup> angles]].<ref>''Merriam-Webster's Third International Dictionary''.</ref> In Euclid's ''Elements'', they were defined as lines which intersect to form one right angle<ref>Euclid. ''The Elements''. Book I.</ref>, and they were proven to form four via the [[Perpendicular Lines Theorem]].	+	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|90<sup>o</sup> angles]].<ref>''Merriam-Webster's Third International Dictionary''.</ref> In Euclid's ''Elements'', they were defined as lines which intersect to form one right angle,<ref>Euclid. ''The Elements''. Book I.</ref> and they were proven to form four via the [[Perpendicular Lines Theorem]].
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		+	==References==
		+	{{Reflist}}

	[[Category:Plane Geometry]]		[[Category:Plane Geometry]]

← Older revision		Revision as of 22:56, March 2, 2017
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−	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|90<sup>o</sup> angles]].	+	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|90<sup>o</sup> angles]].<ref>''Merriam-Webster's Third International Dictionary''.</ref> In Euclid's ''Elements'', they were defined as lines which intersect to form one right angle<ref>Euclid. ''The Elements''. Book I.</ref>, and they were proven to form four via the [[Perpendicular Lines Theorem]].

−	[[Category:~~Mathematics~~]]	+	[[Category:Plane Geometry]]

← Older revision		Revision as of 17:25, July 13, 2016
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	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|90<sup>o</sup> angles]].		'''Perpendicular lines''' are lines which intersect to form four [[right angles\|90<sup>o</sup> angles]].

−	[[~~category~~:~~mathematics~~]]	+	[[Category:Mathematics]]

← Older revision		Revision as of 01:06, October 1, 2007
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−	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|<~~math~~>~~90^~~o</~~math~~> angles]].	+	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|90<sup>o</sup> angles]].

	[[category:mathematics]]		[[category:mathematics]]

← Older revision		Revision as of 01:06, October 1, 2007
Line 1:		Line 1:
−	'''Perpendicular lines''' are lines which intersect to form four <math>90^o</math> angles.	+	'''Perpendicular lines''' are lines which intersect to form four [[right angles\|<math>90^o</math> angles]].

	[[category:mathematics]]		[[category:mathematics]]

← Older revision		Revision as of 19:49, July 17, 2007
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	'''Perpendicular lines''' are lines which intersect to form four <math>90^o</math> angles.		'''Perpendicular lines''' are lines which intersect to form four <math>90^o</math> angles.
		+
		+	[[category:mathematics]]