The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t16.9

c8.t16.9

**19.5-19.7.** *Bricks and their placement in the second layer.* The entire space of the fire-altar (*agnikṣetra*) can be divided into five large isosceles triangles of base *p* and height (from vertex to base) 6*p*. Three of them have their vertices turned towards west and the vertices of the two in between them are turned towards east. The two isosceles triangles, one on the southern side and the other on the northern, which have their vertices turned towards west, are bisected by perpendicular lines drawn from the vertex to the base (Fig. 71). The *agnikṣetra* is thus divided into three portions, (1) half isosceles triangle *CDE* on the southern side, (2) the half isosceles triangle *BAF* on the northern side, and (3) the rectangle *BCEF* in the middle. Note that, since *ED* and *AF* are each ½p, EF = BC = 2p.