Circle
(the database of solved problems)
All the problems and solutions shown below were generated using the Circle Calculator.
| ID |
Problem |
Count |
| 501 | Find the area $ A $ of a circle if circumference $C = 9\, \text{in}$. | 2 |
| 502 | Find the area $ A $ of a circle if diameter $d = 15.4\, \text{cm}$. | 2 |
| 503 | Find the area $ A $ of a circle if diameter $d = 315\, \text{mm}$. | 2 |
| 504 | Find the area $ A $ of a circle if diameter $d = 2\, \text{mm}$. | 2 |
| 505 | Find the area $ A $ of a circle if diameter $d = 4\, \text{in}$. | 2 |
| 506 | Find the area $ A $ of a circle if diameter $d = 4\, \text{in}$. | 2 |
| 507 | Find the area $ A $ of a circle if circumference $C = 474\, \text{mm}$. | 2 |
| 508 | Find the circumference $ C $ of a circle if area $A = 1\, \text{cm}^2$. | 2 |
| 509 | Find the circumference $ C $ of a circle if area $A = 2\, \text{cm}^2$. | 2 |
| 510 | Find the area $ A $ of a circle if area $A = 78.5\, \text{mm}^2$. | 2 |
| 511 | Find the area $ A $ of a circle if circumference $C = 20\, \text{m}$. | 2 |
| 512 | Find the area $ A $ of a circle if radius $r = 4\, \text{ft}$. | 2 |
| 513 | Find the area $ A $ of a circle if radius $r = 1.5\, \text{mm}$. | 2 |
| 514 | Find the area $ A $ of a circle if circumference $C = 30\, \text{in}$. | 2 |
| 515 | Find the area $ A $ of a circle if diameter $d = 2.6\, \text{in}$. | 2 |
| 516 | Find the area $ A $ of a circle if radius $r = 1.875\, \text{mm}$. | 2 |
| 517 | Find the area $ A $ of a circle if circumference $C = 176\, \text{in}$. | 2 |
| 518 | Find the area $ A $ of a circle if circumference $C = 176\, \text{in}$ and radius $r = 28\, \text{in}$. | 2 |
| 519 | Find the area $ A $ of a circle if circumference $C = 58\, \text{mm}$. | 2 |
| 520 | Find the diameter $ d $ of a circle if area $A = 36$ and diameter $d = 81$. | 1 |
| 521 | Find the area $ A $ of a circle if radius $r = \frac{ 129 }{ 5 }$. | 1 |
| 522 | Find the circumference $ C $ of a circle if diameter $d = \frac{ 137 }{ 100 }$. | 1 |
| 523 | Find the area $ A $ of a circle if circumference $C = \frac{ 251 }{ 8 }$. | 1 |
| 524 | Find the area $ A $ of a circle if area $A = 36$, circumference $C = 8$, radius $r = 6$ and diameter $d = 12$. | 1 |
| 525 | Find the radius $ r $ of a circle if circumference $C = 20$. | 1 |
| 526 | Find the area $ A $ of a circle if radius $r = \frac{ 6231 }{ 25 }$. | 1 |
| 527 | Find the area $ A $ of a circle if radius $r = 63$. | 1 |
| 528 | Find the area $ A $ of a circle if circumference $C = 110$ and radius $r = 20$. | 1 |
| 529 | Find the area $ A $ of a circle if radius $r = 1$. | 1 |
| 530 | Find the area $ A $ of a circle if diameter $d = 25$. | 1 |
| 531 | Find the radius $ r $ of a circle if area $A = 354$. | 1 |
| 532 | Find the area $ A $ of a circle if area $A = 2573$. | 1 |
| 533 | Find the radius $ r $ of a circle if area $A = \frac{ 2573 }{ 100 }$. | 1 |
| 534 | Find the area $ A $ of a circle if diameter $d = \frac{ 51 }{ 5 }$. | 1 |
| 535 | Find the diameter $ d $ of a circle if circumference $C = \frac{ 609 }{ 10 }$. | 1 |
| 536 | Find the diameter $ d $ of a circle if circumference $C = \frac{ 38 }{ 5 }$. | 1 |
| 537 | Find the diameter $ d $ of a circle if circumference $C = \frac{ 197 }{ 10 }$. | 1 |
| 538 | Find the radius $ r $ of a circle if circumference $C = \frac{ 609 }{ 10 }$. | 1 |
| 539 | Find the radius $ r $ of a circle if circumference $C = 19$. | 1 |
| 540 | Find the radius $ r $ of a circle if circumference $C = \frac{ 197 }{ 10 }$. | 1 |
| 541 | Find the area $ A $ of a circle if circumference $C = 18$. | 1 |
| 542 | Find the area $ A $ of a circle if radius $r = \frac{ 1 }{ 2 }$. | 1 |
| 543 | Find the area $ A $ of a circle if area $A = 20$, radius $r = 5$ and diameter $d = 10$. | 1 |
| 544 | Find the area $ A $ of a circle if area $A = 4$, circumference $C = 5$, radius $r = 5$ and diameter $d = 6$. | 1 |
| 545 | Find the radius $ r $ of a circle if area $A = 430$, circumference $C = 6\pi$, radius $r = \frac{ 11 }{ 2 }$ and diameter $d = 60$. | 1 |
| 546 | Find the radius $ r $ of a circle if circumference $C = 430$. | 1 |
| 547 | Find the area $ A $ of a circle if circumference $C = \frac{ 475 }{ 4 }$ and radius $r = \frac{ 1428 }{ 5 }$. | 1 |
| 548 | Find the area $ A $ of a circle if area $A = 50$, circumference $C = 56$, radius $r = 3$ and diameter $d = 20$. | 1 |
| 549 | Find the area $ A $ of a circle if circumference $C = 56$, radius $r = 3$ and diameter $d = 20$. | 1 |
| 550 | Find the radius $ r $ of a circle if circumference $C = 56$, radius $r = 3$ and diameter $d = 20$. | 1 |
