But if the breadths be not at equal distances, compute all the parts separately as trapezoids (as directed in 3), and their sum will be the area of the figure. OF THE CIRCLE. r 8. The Diameter given to find the Circumference, or the Circumference anbsp;...
|Title||:||Instructions for the use of the slide-rule, applied to computations relating to practical husbandry, etc|
|Author||:||John EWART (Land Surveyor.)|