helf circle | 1 1/2 circle | 2 1/2 circle | 3 1/2 circle | 4 1/2 circle | 5 1/2 circle | 6 1/2 circle | 7 1/2 circle | 8 1/2 circle | 9 1/2 circle | 10 1/2 circle | 11 1/2 circle | 12 1/2 circle | 13 1/2 circle | 14 1/2 circle | 15 1/2 circle | 16 1/2 circle | 17 1/2 circle | 18 1/2 circle | 19 1/2 circle | 20 1/2 circle | 21 1/2 circle | 22 1/2 circle | 23 1/2 circle | 24 1/2 circle | 25 1/2 circle | 26 1/2 circle | 27 1/2 circle | 28 1/2 circle | 29 1/2 circle | 30 1/2 circle | 31 1/2 circle | 32 1/2 circle | 33 1/2 circle | 34 1/2 circle | 35 1/2 circle | 36 1/2 circle | 37 1/2 circle | 38 1/2 circle | 39 1/2 circle | 40 1/2 circle | 41 1/2 circle | 42 1/2 circle | 43 1/2 circle | 44 1/2 circle | 45 1/2 circle | 46 1/2 circle | 47 1/2 circle | 48 1/2 circle | 49 1/2 circle | 50 1/2 circle | 51 1/2 circle | 52 1/2 circle | 53 1/2 circle | 54 1/2 circle | 55 1/2 circle | 56 1/2 circle | 57 1/2 circle | 58 1/2 circle | 59 1/2 circle | 60 1/2 circle | 61 1/2 circle | 62 1/2 circle | 63 1/2 circle | 64 1/2 circle | 65 1/2 circle | 66 1/2 circle | 67 1/2 circle | 68 1/2 circle | 69 1/2 circle | 70 1/2 circle | 71 1/2 circle | 72 1/2 circle | 73 1/2 circle | 74 1/2 circle | 75 1/2 circle | 76 1/2 circle | 77 1/2 circle | 78 1/2 circle | 79 1/2 circle | 80 1/2 circle | 81 1/2 circle | 82 1/2 circle | 83 1/2 circle | 84 1/2 circle | 85 1/2 circle | 86 1/2 circle | 87 1/2 circle | 88 1/2 circle | 89 1/2 circle | 90 1/2 circle | 91 1/2 circle | 92 1/2 circle | 93 1/2 circle | 94 1/2 circle | 95 1/2 circle | 96 1/2 circle | 97 1/2 circle | 98 1/2 circle | 99 1/2 circle | 100 1/2 circle |
eighth circle | 4 1/8 circle | 8 1/8 circle | 12 1/8 circle | 16 1/8 circle | 20 1/8 circle | 24 1/8 circle | 28 1/8 circle | 32 1/8 circle | 36 1/8 circle | 40 1/8 circle | 44 1/8 circle | 48 1/8 circle | 52 1/8 circle | 56 1/8 circle | 60 1/8 circle | 64 1/8 circle | 68 1/8 circle | 72 1/8 circle | 76 1/8 circle | 80 1/8 circle | 84 1/8 circle | 88 1/8 circle | 92 1/8 circle | 96 1/8 circle | 100 1/8 circle | 104 1/8 circle | 108 1/8 circle | 112 1/8 circle | 116 1/8 circle | 120 1/8 circle | 124 1/8 circle | 128 1/8 circle | 132 1/8 circle | 136 1/8 circle | 140 1/8 circle | 144 1/8 circle | 148 1/8 circle | 152 1/8 circle | 156 1/8 circle | 160 1/8 circle | 164 1/8 circle | 168 1/8 circle | 172 1/8 circle | 176 1/8 circle | 180 1/8 circle | 184 1/8 circle | 188 1/8 circle | 192 1/8 circle | 196 1/8 circle | 200 1/8 circle | 204 1/8 circle | 208 1/8 circle | 212 1/8 circle | 216 1/8 circle | 220 1/8 circle | 224 1/8 circle | 228 1/8 circle | 232 1/8 circle | 236 1/8 circle | 240 1/8 circle | 244 1/8 circle | 248 1/8 circle | 252 1/8 circle | 256 1/8 circle | 260 1/8 circle | 264 1/8 circle | 268 1/8 circle | 272 1/8 circle | 276 1/8 circle | 280 1/8 circle | 284 1/8 circle | 288 1/8 circle | 292 1/8 circle | 296 1/8 circle | 300 1/8 circle | 304 1/8 circle | 308 1/8 circle | 312 1/8 circle | 316 1/8 circle | 320 1/8 circle | 324 1/8 circle | 328 1/8 circle | 332 1/8 circle | 336 1/8 circle | 340 1/8 circle | 344 1/8 circle | 348 1/8 circle | 352 1/8 circle | 356 1/8 circle | 360 1/8 circle | 364 1/8 circle | 368 1/8 circle | 372 1/8 circle | 376 1/8 circle | 380 1/8 circle | 384 1/8 circle | 388 1/8 circle | 392 1/8 circle | 396 1/8 circle | 400 1/8 circle |
1/2 circle or half circle is equal to 360°/2 = 180°. Plural name is helf circles.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
helf circle | 1/2 circle | ≡ 180 ° | = 3.1415926 rad | Metric system SI |
helf circles | eighth circles | helf circles | eighth circles |
---|---|---|---|
1 | = 4 | 6 | = 24 |
2 | = 8 | 7 | = 28 |
3 | = 12 | 8 | = 32 |
4 | = 16 | 9 | = 36 |
5 | = 20 | 10 | = 40 |
1/8 circle or eighth circle is equal to 360/8 = 45°. Plural name is eighth circles.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
eighth circle | 1/8 circle | ≡ 45 ° | = 0.78539815 rad | Metric system SI |
eighth circles | helf circles | eighth circles | helf circles |
---|---|---|---|
1 | = 0.25 | 6 | = 1.5 |
2 | = 0.5 | 7 | = 1.75 |
3 | = 0.75 | 8 | = 2 |
4 | = 1 | 9 | = 2.25 |
5 | = 1.25 | 10 | = 2.5 |
helf circles | eighth circles |
---|---|
1 | = 4 |
0.25 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |