Solution 4.1:3b - Revision history

Tek at 08:06, 3 October 2008

2008-10-03T08:06:58Z

←Older revision		Revision as of 08:06, 3 October 2008
Line 1:		Line 1:
-	Because one of the angles in the triangle is	+	Because one of the angles in the triangle is 90°, we have a right-angled triangle and can use the Pythagorean theorem to set up a relation between the triangle's sides.
-	~~<math>90^{\circ }</math>~~, we have a right-angled triangle and can use ~~Pythagoras'~~ theorem to set up a relation between the triangle's sides.	+

-	The side of length	+	The side of length 13 is the hypotenuse in the triangle, and the Pythagorean theorem therefore gives us that
-	~~<math>\text{~~13~~}</math>~~	+
-	is the hypotenuse in the triangle, and ~~Pythagoras'~~ theorem therefore gives us that	+
-		+
-		+
-	~~<math>13^{2}=12^{2}+x^{2}</math>~~	+

		+	{{Displayed math\|\|<math>13^{2} = 12^{2} + x^{2}\,,</math>}}

	i.e.		i.e.

-		+	{{Displayed math\|\|<math>x^{2}=13^{2}-12^{2}\,\textrm{.}</math>}}
-	<math>x^{2}=13^{2}-12^{2}</math>	+
-		+

	This means that		This means that

-		+	{{Displayed math\|\|<math>x = \sqrt{13^{2}-12^{2}} = \sqrt{169-144} = \sqrt{25} = 5\,\textrm{.}</math>}}
-	<math>x=\sqrt{13^{2}-12^{2}}=\sqrt{169-144}=\sqrt{25}=5</math>	+

2008-09-27T09:32:01Z

←Older revision		Revision as of 09:32, 27 September 2008
Line 1:		Line 1:
-	{{~~NAVCONTENT_START}~~}	+	Because one of the angles in the triangle is
-	<~~center~~> ~~[[Image:4_1_3b~~.~~gif]]~~ </~~center~~>	+	<math>90^{\circ }</math>, we have a right-angled triangle and can use Pythagoras' theorem to set up a relation between the triangle's sides.
-	{{~~NAVCONTENT_STOP~~}}	+
		+	The side of length
		+	<math>\text{13}</math>
		+	is the hypotenuse in the triangle, and Pythagoras' theorem therefore gives us that
		+
		+
		+	<math>13^{2}=12^{2}+x^{2}</math>
		+
		+
		+	i.e.
		+
		+
		+	<math>x^{2}=13^{2}-12^{2}</math>
		+
		+
		+	This means that
		+
		+
		+	<math>x=\sqrt{13^{2}-12^{2}}=\sqrt{169-144}=\sqrt{25}=5</math>

2008-09-09T09:34:23Z

←Older revision

Revision as of 09:34, 9 September 2008

2008-08-21T07:04:19Z

Robot: Automated text replacement (-[[Bild: +[[Image:)

2008-04-02T12:55:57Z

Ny sida: {{NAVCONTENT_START}} <center> Bild:4_1_3b.gif </center> {{NAVCONTENT_STOP}}

New page

{{NAVCONTENT_START}}
<center> [[Bild:4_1_3b.gif]] </center>
{{NAVCONTENT_STOP}}