The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t28.62

c8.t28.62

The *śakaṭamukha* means a figure resembling the fore-part of a cart and represents an isosceles triangle. It is also constructed out of square or rectangle (*Bśl.* 2.7-2.8). The *prāgvaṃśa* is a rectangle (*Bśl.* 4.1), the *śālā* a rectangle (Mahīdhara) and the *sada* also a rectangle (*Bśl.* 4.4). In the construction of these altars the north-south line is considered the reference line. For construction, decrease and increase of measures of altars, Kātyāyana followed the direction of older *śāstras*.