Assertion: regular polygon's length | /r/HasProperty | 3m
Facets:
value: in this case
type: TEMPORAL
Source sentences:
text: To find the height, you subtract b2 by b1, then divide it, then substitute that answer into "a" of the Pythagorean theorem a^2+b^2=c^2, where "c" equals the length of the side of your trapezoid which in this case is 3m.