Assertion: circle's area | /r/HasProperty | multiplied by the distance
Facets:
value: from its center
type: LOCATION
value: to its sides
type: OTHER
Source sentences:
text: The area of a regular polygon is half its perimeter multiplied by the distance from its center to its sides, and the corresponding formula–that the area is half the perimeter times the radius–namely, A = 1/2 × 2πr × r, holds in the limit for a circle.