Note. Nearly in the same manner may a triangle be made equal to any right-lined figure whatever.PROBLEM XLIV. To make a Triangle equal to a given Circle.Draw any ra∣dius Ao, and the tangent AB per∣pendicular to it. —On which take AB equal to the circumference of the circle by Problem XXXVI.—Join BO, so shall ABo be the triangle required, equal to the given circle.diagramPROBLEM XLV. To make a Rectangle, or a Parallelogram equal to a given Triangle ABC.Bisect the base AB in m.— Through C draw Cno pa∣rallel to AB.—Through m and B draw mn and Bo pa∣rallel to each other, and either perpendicular to AB, or making any angle with it. And the rectangle or paralle∣logram mnoB will be equal to the triangle, as required.diagram0