Assertion: ellipse's area | /r/HasProperty | equal
Facets:
value: to that of a triangle
type: OTHER
value: in his measurement of a circle
type: OTHER
Source sentences:
text: As proved by Archimedes, in his Measurement of a Circle, the area enclosed by a circle is equal to that of a triangle whose base has the length of the circle's circumference and whose height equals the circle's radius, which comes to π multiplied by the radius squared: