Ukuthola indawo ye-ellipse: ifomula nesibonelo

Ellipse isithombe sejiyomethri esitholwe emibuthanweni yabo ngokuguqulwa kwe-affine.

Ifomula yendawo

Indawo ye-ellipse (S) ilingana nomkhiqizo wobude bama-semixes ayo kanye nenombolo π:

S= π *a*b

Qaphela: ngokubala inani lenombolo π kuhlanganiswe ku 3,14.

Isibonelo senkinga

Thola indawo ye-ellipse uma ama-semiax ayo angu-2 cm no-4 cm.

Isinqumo:

Sifaka idatha esaziwa yithi ngokwemibandela yenkinga efomini: S u3,14d 2 * 4 cm * 25,12 cm uXNUMXd XNUMX cm².