The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c7.411

c7.411

**12.5** A square twice as large as the area of the (seven-fold) fire-altar with (two) *aratnis* and (one) *prādeśa* is laid; the mid-point of the eastern side (of the square) is joined to the two western corners (of the square, and the area lying outside these lines is cut off); this is the exact triangle (equal in area to the seven-fold fire-altars of 7½ sq. *puruṣa*).