Koonus inglise keeles

A cone is a three-dimensional geometric shape that tapers smoothly from a flat base to a point called the apex or vertex
Koonus on kolmemõõtmeline geomeetriline kujund, mis kitseneb sujuvalt tasasest alusest punktini, mida nimetatakse tipuks või tipuks.

A cone with a circular base is called a right cone, and a cone with an elliptical base is called an oblique cone
Ringikujulise põhjaga koonust nimetatakse parempoolseks ja elliptilise põhjaga koonust kaldus koonuseks.

The surface of a cone is called a lateral surface, and the line joining the apex of the cone to the center of the base is called the axis of the cone.
Koonuse pinda nimetatakse külgpinnaks ja joont, mis ühendab koonuse tipu aluse keskmega, nimetatakse koonuse teljeks.