单词	corollary
释义	Corollary A theorem that follows on from another theorem. Example: there is a Theorem that says: two angles that together form a straight line are "supplementary" (they add to 180°). A Corollary to this is the "Vertical Angle Theorem" that says: where two lines intersect, the angles opposite each other are equal (a=c and b=d in the diagram). Proof that a=c: Angles a and b are on a straight line, so: ⇒ angles a + b = 180° and so a = 180° − b Angles c and b are also on a straight line, so: ⇒ angles c + b = 180° and so c = 180° − b So angle a = angle c See: Theorem
随便看	central angle centroid century certain chaos chord circle circumcenter circumcircle circumcircle of triangle circumference circumradius circumscribe class interval classify clockwise closed curve closed interval closed sentence closure cluster coaxial codomain coefficient coincident

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