for Gardeners, &c. ^j 



To find the Content of a Circle^ or any Fart 

 thereof 



To find the Content of a Circle^ one 

 Way IS, after you know the Diameter^ 

 to •work by the Rule of Three, and fay, as 

 7 is to 22, fo is the Diameter to the Circum- 

 ference 5 and then you are to multiply half 

 the Diameter by half the Circumference, to 

 find the Content. 



But a better Way is to fquare the Diame^ 

 ter, and fay, as 14 is to 11, fo is the 

 Square of the Diameter to the Content of the 

 Circle. lU 



Suppofe, then, that the Diameter of the 

 Circle A B, &C. Fig. 8. Plate the 23^, be 2a 

 Foot, that 20 Foot multiply 'd by itfelf, viz^ 

 2c Foot, makes 400 5 fay then, as 14 is to 11, 

 fo is the 400 to the Content of this Circle. 

 See the Work. 



14)4400(314-^ above f 



.„. 20 

 60 



iSo 



