Area kalkuleta ba ka damar samun wani yanki na daban-daban na lissafi siffofi, kamar square, murabba'i mai dari, parallelogram, trapezoid, rhombus, da'ira, alwatika, da daban-daban dabarbari.
Area wani square, square yankin dabara kalkuleta
Nemo fannin wani square, da dabarbari, ta yin amfani da tsawon square bangarorin ko diagonal.