Assertion: triangle's square | /r/HasAspect | four sides
Facets:
value: with lengths
type: OTHER
Source sentences:
text: A square, which has four sides with lengths each equal to Y, has a perimeter equal to 4 x Y. Similarly, a rectangle, which has two sides equal to R and the other two equal to S, has the perimeter of (2 x R + 2 x S).