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
401	Find the area $ A $ of a circle if diameter $d = 20\, \text{ft}$.	2
402	Find the area $ A $ of a circle if diameter $d = 5\, \text{in}$.	2
403	Find the area $ A $ of a circle if circumference $C = 9\, \text{ft}$ and radius $r = 3.14\, \text{mm}$.	2
404	Find the area $ A $ of a circle if area $A = 40\, \text{mm}^2$ and radius $r = 10\, \text{mm}$.	2
405	Find the circumference $ C $ of a circle if area $A = 100\, \text{cm}^2$.	2
406	Find the circumference $ C $ of a circle if area $A = 100\, \text{cm}^2$.	2
407	Find the area $ A $ of a circle if radius $r = 1\, \text{mi}$.	2
408	Find the area $ A $ of a circle if ???.	2
409	Find the diameter $ d $ of a circle if area $A = 34\, \text{m}^2$ and circumference $C = 2\, \text{m}$.	2
410	Find the area $ A $ of a circle if diameter $d = 25\, \text{in}$.	2
411	Find the area $ A $ of a circle if diameter $d = 26\, \text{mm}$.	2
412	Find the area $ A $ of a circle if radius $r = 13.1\, \text{in}$.	2
413	Find the area $ A $ of a circle if diameter $d = 600\, \text{mm}$.	2
414	Find the area $ A $ of a circle if diameter $d = 36\, \text{mm}$.	2
415	Find the area $ A $ of a circle if diameter $d = 80\, \text{mm}$.	2
416	Find the area $ A $ of a circle if radius $r = 40\, \text{mm}$ and diameter $d = 80\, \text{mm}$.	2
417	Find the diameter $ d $ of a circle if diameter $d = 25\, \text{m}$.	2
418	Find the area $ A $ of a circle if radius $r = 129\, \text{in}$.	2
419	Find the area $ A $ of a circle if radius $r = 1.25\, \text{cm}$.	2
420	Find the area $ A $ of a circle if radius $r = 50\, \text{m}$.	2
421	Find the area $ A $ of a circle if circumference $C = 6.4\, \text{mm}$.	2
422	Find the area $ A $ of a circle if circumference $C = 6.4\, \text{in}$.	2
423	Find the area $ A $ of a circle if diameter $d = 803.2\, \text{in}$.	2
424	Find the area $ A $ of a circle if radius $r = 7\, \text{in}$.	2
425	Find the area $ A $ of a circle if diameter $d = 0.8\, \text{m}$.	2
426	Find the area $ A $ of a circle if diameter $d = 258.722\, \text{mm}$.	2
427	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
428	Find the area $ A $ of a circle if diameter $d = 4\, \text{mm}$.	2
429	Find the area $ A $ of a circle if radius $r = 1.5\, \text{ft}$.	2
430	Find the area $ A $ of a circle if radius $r = 1.5\, \text{mi}$.	2
431	Find the area $ A $ of a circle if radius $r = 5\, \text{ft}$ and diameter $d = 10\, \text{ft}$.	2
432	Find the area $ A $ of a circle if diameter $d = 40\, \text{ft}$.	2
433	Find the area $ A $ of a circle if diameter $d = 24\, \text{mm}$.	2
434	Find the area $ A $ of a circle if diameter $d = 16\, \text{ft}$.	2
435	Find the area $ A $ of a circle if radius $r = 40\, \text{ft}$.	2
436	Find the area $ A $ of a circle if radius $r = 0.04\, \text{mm}$.	2
437	Find the area $ A $ of a circle if radius $r = 7\, \text{yd}$.	2
438	Find the area $ A $ of a circle if area $A = 8\, \text{mm}^2$.	2
439	Find the area $ A $ of a circle if area $A = 70\, \text{in}^2$.	2
440	Find the area $ A $ of a circle if diameter $d = 23\, \text{in}$.	2
441	Find the area $ A $ of a circle if radius $r = 12\, \text{yd}$.	2
442	Find the area $ A $ of a circle if area $A = 53\, \text{mm}^2$ and radius $r = 5\, \text{mm}$.	2
443	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
444	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
445	Find the area $ A $ of a circle if diameter $d = 12\, \text{mm}$.	2
446	Find the area $ A $ of a circle if radius $r = 13.75\, \text{mm}$.	2
447	Find the area $ A $ of a circle if area $A = \frac{ 27 }{ 50 }\, \text{mm}^2$.	2
448	Find the area $ A $ of a circle if circumference $C = 18\pi\, \text{mm}$.	2
449	Find the area $ A $ of a circle if circumference $C = 13.75\, \text{mm}$.	2
450	Find the area $ A $ of a circle if circumference $C = 18\, \text{in}$.	2