Assertion: polygon's angle | /r/HasProperty | 90°
Facets:
Source sentences:
text: A rectangle is a four-sided shape where every angle is a right angle (90°).
text: All angles are 90 degrees
text: A square has equal sides (marked "s") and every angle is a right angle (90°)
text: A square also fits the definition of a rectangle (all angles are 90°), and a rhombus (all sides are equal length).
text: Moreover, the angle at the North Pole is also 90° because the other two vertices differ by 90° of longitude.
text: A triangle drawn from the equator to a pole will have at least two angles equal 90°, which makes the sum of the 3 angles greater than 180°.
text: you are given that the exterior angle = 90 degrees.