Indlela ukufumana indawo yoxande

Nale mbono, kuba le ndawo, kufuneka nazo yonke imihla ebomini babo. Ngokomzekelo, xa ukwakha indlu kuyimfuneko ukwazi ukuze makambalele inani izinto ezifunekayo. kwakhona ubungakanani sebali igadi luya kubalulwa ndawo. Nkqu ilungisa kwigumbi esinokwenziwa ngaphandle kule nkcazelo. Ngoko ke umbuzo yokufumana indlela kummandla uxande, phezu kwethu endleleni yobomi kuvela rhoqo kakhulu kwaye kubalulekile nje kuphela abafundi.

Kuba abo bangamaziyo, uxande - figure moya macala zabo malunga bayalingana yaye engile ke ° 90. Ekuchazeni iindawo kwimathematika kusetyenziswa ileta IsiNgesi S. It ilinganiswa kwiiyunithi square: iimitha, cm, njalo-njalo.

Ngoku siza kuzama ukunika impendulo eneenkcukacha lo mbuzo ukufumana indlela kummandla uxande. Kukho iindlela ezininzi ukukhangela le nobungakanani. Amaninzi sijamelene kunye nendlela yokufumanisa ummandla usebenzisa ububanzi nobude.

Thatha uxande kunye ububanzi k b kunye nobude. Ukubala indawo ububanzi yoxande kufuneka liphindaphindwe ubude. Oku bonke angamelwa njenge ifomula, nto leyo khangela ngolu hlobo: * k S = b.

Ngoku khawucinge ngale ndlela phezu umzekelo eziphathekayo. Kuyimfuneko ukuba ukumisela indawo iyelenqe igadi kunye ububanzi oziimitha ezi-2 kunye eemitha 7 ubude.

S = 2 * 7 = 14 m2

Ngezibalo, ingakumbi kwisikolo samabanga aphakamileyo, kuyimfuneko ukuba lijonge indawo nangezinye iindlela, njengoko kwiimeko ezininzi, nokuba ubude okanye ububanzi uxande alwaziwa kuthi. Nangona kunjalo, kukho ezinye izinto ezaziwayo-kakuhle. Indlela ukufumana indawo uxande kule meko?

• Ukuba siyazi ubude idiagonal kwaye enye ezimbombeni ekulelona idiagonal ukusuka naliphi na icala elide, kulo mzekelo, kufuneka ukhumbule malunga kummandla kanxantathu tye. Eneneni, ukuba ukhangela, uxande eyakhiwa zoonxantathu ezimbini ngokulinganayo-engile egqithe. Ngoko emva ixabiso elichaziweyo. Okokuqala kufuneka ukufumanisa i cosine ye ekujikeni. Ixabiso engumphumela liphindaphindwe ubude idiagonal. Ngenxa yoko, nathi ukufumana ubude elinye icala elide. Ngokufanayo, kodwa usebenzisa inkcazelo sine, sikwazi ubude Ezecala lesibini. Nendlela yokufumana kummandla uxande ngoku? Yinto elula kakhulu, phinda amaxabiso ifunyenwe.

Xa ifomula bekuya ikhangeleke ngolu hlobo:

S = cos (a) * nesono (a) * D2, apho ubude d- oxwesileyo

• Enye indlela lijonge indawo uxande - esangqeni abhaliwe kuyo. Isebenza ukuba boxande isikwere. Ukuze usebenzise le ndlela kuyimfuneko ukwazi owela ngaphakathi kwama-wesangqa. Indlela yokubala indawo uxande ngendlela enjalo? Kakade ke, ngokutsho ifomula. Ukuze ukungqina oko, angeke. Yaye kubonakala: S = 4 * R2, apho r na embindini.

Kuyenzeka ukuba siyazi embindini endaweni sangqa kwisangqa sibhalwe. Ngoko ke ifomula kungaba ngolu hlobo:

S = D2, apho d - ubukhulu.

• Ukuba uyazi omnye emacaleni kunye iperimitha, ngoko ukufumana indlela indawo uxande kule meko? Ukuze wenze oku, kufuneka wenze inani izibalo ezilula. Njengoko sisazi, kwicala elijongene uxande bayalingana, ngoko ke ixabiso kujikelezo imfuneko yokuba athathe ubude ethile liphindaphindwe ababini. Isiphumo wafumana yahlulwe ngo ezimbini aze umfundi afumane ubude Ezecala lesibini. Owu, ke ngoko ke indlela esezantsi, phinda omabini amacala uze ufumane indawo yoxande. Xa ifomula bekuya ikhangeleke ngolu hlobo:

S = b * (P - 2 * b), apho b - ubude icala, P - ongaphandle kwebala.

Njengoko ubona indawo eziziingxande inokuchazwa ngeendlela ezahlukahlukeneyo. konke kuxhomekeke kuhlobo amaxabiso aziwa kuthi phambi kokuba kuqwalaselwe lo mba. Kakade ke, phantse ziphinde zenzeke iindlela ezintsha yokubala ebomini, kodwa kunokuba luncedo kwimisebenzi ezininzi esikolweni. Kunokwenzeka yaye ukuhlangabezana neemfuno zakho, eli nqaku liza kuba luncedo.