This is a misspelling of sukgisan, a Tagalog word that was coined for there to be a local synonym for “geometry.”
Most Filipinos simply use the English word as is, perhaps transliterated as jómetrí, or use the Spanish-derived word heometríya in academic texts.
dyiyómetrí
geometry
MGA KAHULUGAN SA TAGALOG
heometríya: sangay ng matematika tungkol sa katangian at kaugnayan ng mga punto, linya, rabaw, at solid
heometríya: relatibong kaayusan ng mga bagay o bahagi
