Okuqukethwe
Ukushicilelwa kwethula izibali eziku-inthanethi namafomula okubala indawo ye-trapezoid ngokuya ngedatha ehlukahlukene yokuqala: ngobude bezisekelo nobude, kuzo zonke izinhlangothi, ngamadiagonal kanye ne-engeli ephakathi kwawo.
Okuqukethwe
Ukubalwa kwendawo
Imiyalo yokusetshenziswa: faka amanani aziwayo, bese ucindezela inkinobho “Bala”. Ngenxa yalokho, indawo yesibalo izobalwa kucatshangelwa idatha eshiwo.
1. Ngokusebenzisa izisekelo nokuphakama
Ifomula yokubala
2. Ezinhlangothini ezi-4 (ifomula kaHeron)
Ifomula yokubala
p - i-semi-perimeter ye-trapezoid, ibhekwa kanjena:
3. Ngokusebenzisa ama-diagonal kanye ne-engeli ephakathi kwawo
Amafomula wokubala
