[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Jyotihshastra: Astral and Mathematical Literature](https://indike.org/pramana/ins.science.pingree-1981) › c3.30 # Jyotihshastra: Astral and Mathematical Literature c3.30 Jyotiḥśāstra: Astral and Mathematical Literature c3.30 - **Language:** English ### [c3.30](https://indike.org/pramana/ins.science.pingree-1981.c3.30) and the radius, r, of a circle whose area is approximately equal to a square of side x: - [Previous: c3.29](https://indike.org/pramana/ins.science.pingree-1981.c3.29) - [Next: c3.31](https://indike.org/pramana/ins.science.pingree-1981.c3.31) - [Up: c3](https://indike.org/pramana/ins.science.pingree-1981.c3) --- Source: [https://indike.org/pramana/ins.science.pingree-1981.c3.30](https://indike.org/pramana/ins.science.pingree-1981.c3.30) · Pramāṇa