Mathematics in Ancient and Medieval India c6.s12.11

c6.s12.11

| Sanskrit terms | English Equivalents |
| 1. *abhīṣṭa-rekhā* | Straight line of desired length. |
| 2. *āyata* | Oblong. |
| 3. *cāpa-karṇa* | Chord. |
| 4. *kodaṇḍa* | Segment of a circle. |
| 5. *koṇa* | Angle. |
| i *adhikakoṇa* | Obtuse angle. |
| ii) *alpakoṇa* | Acute angle. |
| iii) *samakoṇa* | Right angle. |
| iv) *viṣama-koṇa* | Angle other than a right angle. |
| 6. *kṣetra* | Figure. |
| i ) *dharātalakṣetra* | Superficies. |
| ii) *sama-dharātalakṣetra* | Plain superficies. |
| iii) *viṣama-dharātalakṣetra* | Crooked superficies. |
| | N. B. – From one point to another number of crooked lines may be drawn, but one right line which is the shortest may be drawn. So infinite number of crooked superficies may be drawn from one line to another, but only one plain superficies may be drawn which is shortest. |
| 7. *nyāsa* | Construction. |