View source for Qardhaas

Qardhaas Waa mid kamid ah joometeriya afar xagal leh, afartiisa dhinacna ay isla egyihiiin, waxa uuna u egyahay laba [[saddax-xagal]] oo kala jeeda oo hal sal ka dhaxeeya
{{Infobox Polygon
| name = Qardhaas
| image = Rhombus.svg
| caption = Laba Qardhaas
| angle = Afar xagal
| edges = 4
| symmetry = [[dihedral symmetry|D<sub>2</sub>]] (*2)
| area = <math>\tfrac{pq}{2}</math>
| dual = [[Laydi]]
| properties = Qaabtuureed leh
|coxeter = {{CDD|node_f1|2|node_f1}}
|schläfli = { } + { }
}}

== Bedka ==
[[File:Rhombus1.svg|right|280px]]
Bedka ama Badka Qardhaas waxaa loo xisaabi karaa afar qaab:

<ol>
<li> Barbaroolayaasha oo dhan, Waxa ay ka samaysmaan Salka <math>a</math>, Waxa ay la jaan qaadeeysaa dhinacyada iyo jooga <math>h</math>: 
:<math> A = a \cdot h,</math>
<li> Adigoo dhexroorka dheer ku dhifta <math>d_1</math> Dhexroorka gaaban <math>d_2</math> Oo aad markaas uqaybiso 
:<math>\frac{\overline{AC} \cdot \overline{SB}}{2} = \frac{\overline{AC} \cdot \overline{BD}/2}{2} = \frac{\overline{AC} \cdot \overline{BD}}{4}</math>
Adigoo laba laaba si aan u helno
:<math> A = {{d_1 \cdot d_2} \over {2}} = \frac{\overline{AC} \cdot \overline{BD}}{2},</math>
<li> Adigoo ku dhufanaya goobada <math>p</math> Gacanka <math>r</math> Wareegeeda
:<math>4 \cdot \frac{a \cdot r}{2} = 2 \cdot a \cdot r = p \cdot r</math>.
:<math> A = p \cdot r,</math>
<li> Ugudamayntii adigoo uxisaaba sida afar xafal <math>a</math> Xaglaha gudaha adigoo isku dhufta
:<math>{a^2 \cdot \sin\alpha} = a \cdot (a \cdot \sin\alpha) = a \cdot h</math>
:<math> A = {a^2 \cdot \sin\alpha} = {a^2 \cdot \sin\beta}.</math>

[[Category:Afar geesle]]