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wspułżędne=(-0)
*=razy
A = (-2; -4) i B = (-3; 3)
AB = [Xb-Xa , Yb-Ya]
AB = [-3 + 2 , 3 + 4]
AB = [-1, 7]
Długość:
|AB| = √(X² + Y²)
|AB| = √(1 + 49)
|AB| = √(50)
|AB| = 5√₂
Współrzędne środka:
A = (-2; -4) i B = (-3; 3)
{ Xs = ½(Xb+Xa)
{ Ys = ½(Yb+Ya)
{ Xs = ½(-3 - 2)
{ Ys = ½(3 - 4)
{ Xs = ½(-5)
{ Ys = ½(-1)
{ Xs = -⁵/₂
{ Ys = -½
Śr = (-⁵/₂ , -½)