Natural history of nutrition, life, and voluntary motion containing all the new discoveries of anatomist's and most probable opinions of physicians, concerning the oeconomie of human nature : methodically delivered in exercitations physico-anatomical
Charleton, Walter, 1619-1707.

proposition, 10.

To make a Square equal to a Parallelogram given.

Page  200 Let the Parallelogram be A B C D. To which to find a square equal, draw a line from C to E, to the proportion of G D; and divide A E into equal parts into the point F. from whence make a circle A G E; and continue the line C D to the point H. We say, the Line C H. is the roote of the square I K C H. which is in e∣qual proportion to the Parallelogram A B C D.