Assertion: parallelogram's angle | /r/CapableOf | measure 90 degrees
Facets:
Source sentences:
text: A square is a parallelogram with all four sides equal in length and all interior angles measuring 90 degrees.
text: An acute trapezoid has both interior angles (created by the longer base and legs) measuring less than 90°.
text: A rectangle is a parallelogram with all four interior angles measuring at 90 degrees.