Circle

(the database of solved problems)

All the problems and solutions shown below were generated using the Circle Calculator.

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ID	Problem	Count
451	Find the area $ A $ of a circle if radius $r = 40\, \text{mm}$ and diameter $d = 80\, \text{mm}$.	2
452	Find the diameter $ d $ of a circle if diameter $d = 25\, \text{m}$.	2
453	Find the area $ A $ of a circle if radius $r = 129\, \text{in}$.	2
454	Find the area $ A $ of a circle if radius $r = 1.25\, \text{cm}$.	2
455	Find the area $ A $ of a circle if radius $r = 50\, \text{m}$.	2
456	Find the area $ A $ of a circle if circumference $C = 6.4\, \text{mm}$.	2
457	Find the area $ A $ of a circle if circumference $C = 6.4\, \text{in}$.	2
458	Find the area $ A $ of a circle if diameter $d = 803.2\, \text{in}$.	2
459	Find the area $ A $ of a circle if radius $r = 7\, \text{in}$.	2
460	Find the area $ A $ of a circle if diameter $d = 0.8\, \text{m}$.	2
461	Find the area $ A $ of a circle if diameter $d = 258.722\, \text{mm}$.	2
462	Find the area $ A $ of a circle if area $A = 100\, \text{mm}^2$, circumference $C = 27\, \text{ft}$, radius $r = 134\, \text{mm}$ and diameter $d = 58\, \text{mi}$.	2
463	Find the area $ A $ of a circle if diameter $d = 4\, \text{mm}$.	2
464	Find the area $ A $ of a circle if radius $r = 1.5\, \text{ft}$.	2
465	Find the area $ A $ of a circle if radius $r = 1.5\, \text{mi}$.	2
466	Find the area $ A $ of a circle if radius $r = 5\, \text{ft}$ and diameter $d = 10\, \text{ft}$.	2
467	Find the area $ A $ of a circle if diameter $d = 40\, \text{ft}$.	2
468	Find the area $ A $ of a circle if diameter $d = 24\, \text{mm}$.	2
469	Find the area $ A $ of a circle if diameter $d = 16\, \text{ft}$.	2
470	Find the area $ A $ of a circle if radius $r = 40\, \text{ft}$.	2
471	Find the area $ A $ of a circle if radius $r = 0.04\, \text{mm}$.	2
472	Find the area $ A $ of a circle if radius $r = 7\, \text{yd}$.	2
473	Find the area $ A $ of a circle if area $A = 8\, \text{mm}^2$.	2
474	Find the area $ A $ of a circle if area $A = 70\, \text{in}^2$.	2
475	Find the area $ A $ of a circle if diameter $d = 23\, \text{in}$.	2
476	Find the area $ A $ of a circle if radius $r = 12\, \text{yd}$.	2
477	Find the area $ A $ of a circle if area $A = 53\, \text{mm}^2$ and radius $r = 5\, \text{mm}$.	2
478	Find the area $ A $ of a circle if area $A = 11\, \text{mm}^2$, radius $r = 12\, \text{dm}$ and diameter $d = 14\, \text{mm}$.	2
479	Find the area $ A $ of a circle if area $A = 2\, \text{yd}^2$, circumference $C = 7\, \text{mm}$ and radius $r = 4\, \text{mm}$.	2
480	Find the area $ A $ of a circle if diameter $d = 12\, \text{mm}$.	2
481	Find the area $ A $ of a circle if radius $r = 13.75\, \text{mm}$.	2
482	Find the area $ A $ of a circle if area $A = \frac{ 27 }{ 50 }\, \text{mm}^2$.	2
483	Find the area $ A $ of a circle if circumference $C = 18\pi\, \text{mm}$.	2
484	Find the area $ A $ of a circle if circumference $C = 13.75\, \text{mm}$.	2
485	Find the area $ A $ of a circle if circumference $C = 18\, \text{in}$.	2
486	Find the area $ A $ of a circle if circumference $C = 50\, \text{cm}$.	2
487	Find the area $ A $ of a circle if area $A = 1\, \text{mm}^2$ and circumference $C = 8\, \text{cm}$.	2
488	Find the area $ A $ of a circle if radius $r = 3.5\, \text{cm}$.	2
489	Find the area $ A $ of a circle if diameter $d = 4\, \text{m}$.	2
490	Find the circumference $ C $ of a circle if circumference $C = 26\, \text{cm}$.	2
491	Find the area $ A $ of a circle if diameter $d = 30\, \text{in}$.	2
492	Find the diameter $ d $ of a circle if diameter $d = 410\, \text{mm}$.	2
493	Find the area $ A $ of a circle if circumference $C = 150\, \text{ft}$.	2
494	Find the area $ A $ of a circle if radius $r = 18\, \text{in}$ and diameter $d = 36\, \text{in}$.	2
495	Find the area $ A $ of a circle if radius $r = 18\, \text{in}$ and diameter $d = 36\, \text{in}$.	2
496	Find the area $ A $ of a circle if radius $r = 15\, \text{in}$ and diameter $d = 30\, \text{in}$.	2
497	Find the area $ A $ of a circle if radius $r = 1100\, \text{mm}$.	2
498	Find the area $ A $ of a circle if radius $r = 50\, \text{ft}$.	2
499	Find the area $ A $ of a circle if diameter $d = 3.2\, \text{m}$.	2
500	Find the area $ A $ of a circle if circumference $C = 198\, \text{mm}$.	2