The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t36.4

c8.t36.4

**11.11-11.12.** *Areas of figures*. If d be diagonal of a quare of side a, then d²=2a²; that is, the square on the diagonal produces twice the area of the original square; similarly D²=2d²=4a², where D is the diagonal of the square drawn on the diagonal of the original square of side a; and so on. The area of a rectangle with breadth 2 *pu*. and length 8 *pu* is 16 sq. *pu*. (*Mśl*. 11.18).