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diff --git a/213/CH11/EX11.6/11_6.sce b/213/CH11/EX11.6/11_6.sce
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+//To find length and power transmitted
+clc
+//Given:
+d1=450/1000, r1=d1/2, d2=200/1000, r2=d2/2, x=1.95 //m
+N1=200 //rpm
+T1=1*1000 //N
+mu=0.25
+//Solution:
+//Calculating the speed of the belt
+v=%pi*d1*N1/60 //m/s
+//Length of the belt:
+//Calculating the length of the crossed belt
+L=%pi*(r1+r2)+2*x+(r1+r2)^2/x //m
+//Angle of contact between the belt and each pulley:
+//Calculating the angle alpha
+alpha=asin((r1+r2)/x)*180/%pi //degrees
+//Calculating the angle of contact between the belt and each pulley
+theta=(180+2*alpha)*%pi/180 //radians
+//Power transmitted:
+//Calculating the tension in the slack side of the belt
+T2=T1/exp(mu*theta) //N
+//Calculating the power transmitted
+P=(T1-T2)*v/1000 //kW
+//Results:
+printf("\n\n Length of the belt, L = %.3f m.\n\n",L)
+printf(" Angle of contact between the belt and each pulley, theta = %.3f rad.\n\n",theta)
+printf(" Power transmitted, P = %.2f kW.\n\n",P)
+\ No newline at end of file