Assertion: unit parabola | /r/SimilarTo | the length of the arc
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text: For a = 1 {\displaystyle a=1} (semicubical unit parabola) and b = 2 {\displaystyle b=2} , which means the length of the arc between the origin and point ( 4 , 8 ) {\displaystyle (4,8)} , one gets the arc length 9.073 .