Qardhaas Waa mid kamid ah joometeriya afar xagal leh, afartiisa dhinacna ay isla egyihiiin, waxa uuna u egyahay labasaddax-xagal oo kala jeeda oo hal sal ka dhaxeeya
Bedka ama Badka Qardhaas waxaa loo xisaabi karaa afar qaab:
Barbaroolayaasha oo dhan, Waxa ay ka samaysmaan Salkaa {\displaystyle a} h {\displaystyle h} A = a ⋅ h , {\displaystyle A=a\cdot h,} Adigoo dhexroorka dheer ku dhiftad 1 {\displaystyle d_{1}} d 2 {\displaystyle d_{2}} A C ¯ ⋅ S B ¯ 2 = A C ¯ ⋅ B D ¯ / 2 2 = A C ¯ ⋅ B D ¯ 4 {\displaystyle {\frac {{\overline {AC}}\cdot {\overline {SB}}}{2}}={\frac {{\overline {AC}}\cdot {\overline {BD}}/2}{2}}={\frac {{\overline {AC}}\cdot {\overline {BD}}}{4}}} A = d 1 ⋅ d 2 2 = A C ¯ ⋅ B D ¯ 2 , {\displaystyle A={{d_{1}\cdot d_{2}} \over {2}}={\frac {{\overline {AC}}\cdot {\overline {BD}}}{2}},} Adigoo ku dhufanaya goobadap {\displaystyle p} r {\displaystyle r} 4 ⋅ a ⋅ r 2 = 2 ⋅ a ⋅ r = p ⋅ r {\displaystyle 4\cdot {\frac {a\cdot r}{2}}=2\cdot a\cdot r=p\cdot r} A = p ⋅ r , {\displaystyle A=p\cdot r,} Ugudamayntii adigoo uxisaaba sida afar xafala {\displaystyle a} a 2 ⋅ sin α = a ⋅ ( a ⋅ sin α ) = a ⋅ h {\displaystyle {a^{2}\cdot \sin \alpha }=a\cdot (a\cdot \sin \alpha )=a\cdot h} A = a 2 ⋅ sin α = a 2 ⋅ sin β . {\displaystyle A={a^{2}\cdot \sin \alpha }={a^{2}\cdot \sin \beta }.} 
