Assertion: triangle's circle | /r/HasProperty | \displaystyle \pi \varphi
Facets:
Source sentences:
text: Then the perimeters of the square ( 4 φ {\displaystyle 4{\sqrt {\varphi }}} ) and the circle ( π φ {\displaystyle \pi \varphi } ) coincide up to an error less than 0.1%.