The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t13.24

c8.t13.24

In the same manner, another square *IJKL* is formed of 144 bricks, centrally placed within *ABCD*. This is again done out of a square of 169 bricks, each side containing 13 bricks. A pole is placed at the centre of each of the four corner bricks, *I*, *J*, *K* and *L*, and these poles are joined. The area between the squares *IJKL* and *EFGH* is equivalent to the area of 128 (144-16) bricks, half of which, that is, 64, is used for making the spokes (*arā*) and the remaining half (64 bricks) for the empty spaces (*vedi*).