How do you find the length of a curve defined parametrically? Calculus Applications of Definite Integrals Determining the Length of a Curve 1 Answer Wataru Sep 28, 2014 If the curve is defined by a parametric equations #{(x=x(t)),(y=y(t)):}#, then the arc length #L# of the curve from #t=a# to #b# can be found by #L=int_a^b sqrt{({dx}/{dt})^2+({dy}/{dt})^2}dt#. Answer link Related questions How do you find the arc length of #y=ln(cos(x))# on the interval #[pi/6,pi/4]#? What is arc length parametrization? How do you find the length of a curve using integration? How do you find the length of a curve in calculus? How do you find the arc length of #x=2/3(y-1)^(3/2)# between #1<=y<=4#? How do you find the length of the curve #y=x^5/6+1/(10x^3)# between #1<=x<=2# ? How do you find the length of the curve #y=e^x# between #0<=x<=1# ? How do I find the arc length of the curve #y=ln(sec x)# from #(0,0)# to #(pi/ 4, ln(2)/2)#? How do I find the arc length of the curve #y=ln(cos(x))# over the interval #[0,π/4]#? How do you evaluate the line integral, where c is the line segment from (0,8,4) to (6,7,7)? See all questions in Determining the Length of a Curve Impact of this question 5115 views around the world You can reuse this answer Creative Commons License