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Any time there is a right triangle. The rule of a2+b2=c2 applies to the two legs squared = the hypotenuse.
circumcenter
if we have set A and B consider A={1,2,3,4}and B={3,4,5,6} the union of these sets is A and B={1,2,3,4,5,6}and the intersection is{3,4} the union and the intersection are same only if A=B
The car to the rightAnother View: Above answer is incorrect. If the intersection is uncontrolled by any signs or signal, the car which approached the intersection from the bottom leg of the tee (i.e.: the road which ended at the intersection) yields to the through-roadway.
The intersection of two lines can be any of the following:NothingA single pointAn entire line (that means the two lines are NOT distinct)