Given arc length C= 167.03, chord length L=64. 14*2= 128.28, find arc radius r and chord height h?

Rn+ 1 =( 1+(L-2 * Rn * SIN(C/(2 * Rn)))/(L-C * COS(C/(2 * Rn)))* Rn

R0=70

R 1=68.0569

R2=68. 1752

R3=68. 1757

R4=68. 1757

R=68. 1757

H=R-(R^2-(L/2)^2)^0.5

=68. 1757-(68. 1757^2-( 128.28/2)^2)^0.5

=45.0676

h/B = 45.0676/64. 14 = 0.7026435