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
201	Find the area $ A $ of a circle if radius $r = 44\, \text{m}$.	2
202	Find the area $ A $ of a circle if diameter $d = 5\, \text{in}$.	2
203	Find the area $ A $ of a circle if radius $r = 2.25\, \text{ft}$ and diameter $d = 4\, \text{ft}$.	2
204	Find the area $ A $ of a circle if area $A = 49062.5\, \text{mm}^2$, circumference $C = 785\, \text{mm}$, radius $r = 125\, \text{mm}$ and diameter $d = 250\, \text{mm}$.	2
205	Find the area $ A $ of a circle if area $A = 28662.42\, \text{mm}^2$, circumference $C = 600\, \text{mm}$, radius $r = 95.54\, \text{mm}$ and diameter $d = 191.08\, \text{mm}$.	2
206	Find the circumference $ C $ of a circle if diameter $d = 60\, \text{cm}$.	2
207	Find the area $ A $ of a circle if circumference $C = 9\, \text{ft}$ and radius $r = 3.14\, \text{mm}$.	2
208	Find the circumference $ C $ of a circle if diameter $d = 60\, \text{cm}$.	2
209	Find the area $ A $ of a circle if circumference $C = 33\, \text{ft}$.	2
210	Find the area $ A $ of a circle if area $A = 40\, \text{mm}^2$ and radius $r = 10\, \text{mm}$.	2
211	Find the circumference $ C $ of a circle if area $A = 100\, \text{cm}^2$.	2
212	Find the circumference $ C $ of a circle if area $A = 100\, \text{cm}^2$.	2
213	Find the area $ A $ of a circle if circumference $C = 5\, \text{in}$.	2
214	Find the area $ A $ of a circle if radius $r = 3\, \text{in}$.	2
215	Find the area $ A $ of a circle if diameter $d = 8\, \text{mm}$.	2
216	Find the area $ A $ of a circle if area $A = 8\, \text{mm}^2$ and diameter $d = 8\, \text{mm}$.	2
217	Find the area $ A $ of a circle if circumference $C = 85\, \text{in}$.	2
218	Find the area $ A $ of a circle if radius $r = 9.3\, \text{mm}$.	2
219	Find the area $ A $ of a circle if radius $r = 1\, \text{mi}$.	2
220	Find the area $ A $ of a circle if ???.	2
221	Find the diameter $ d $ of a circle if area $A = 34\, \text{m}^2$ and circumference $C = 2\, \text{m}$.	2
222	Find the area $ A $ of a circle if diameter $d = 25\, \text{in}$.	2
223	Find the area $ A $ of a circle if diameter $d = 26\, \text{mm}$.	2
224	Find the area $ A $ of a circle if radius $r = 13.1\, \text{in}$.	2
225	Find the area $ A $ of a circle if diameter $d = 600\, \text{mm}$.	2
226	Find the area $ A $ of a circle if circumference $C = 12\, \text{in}$.	2
227	Find the area $ A $ of a circle if radius $r = 10\, \text{mm}$ and diameter $d = 3\, \text{mm}$.	2
228	Find the area $ A $ of a circle if area $A = 1658.1184\, \text{mm}^2$.	2
229	Find the diameter $ d $ of a circle if circumference $C = 20\, \text{m}$, radius $r = 3.1831\, \text{m}$ and diameter $d = 6.3662\, \text{m}$.	2
230	Find the circumference $ C $ of a circle if area $A = 115\, \text{cm}^2$.	2
231	Find the area $ A $ of a circle if radius $r = 40\, \text{mm}$ and diameter $d = 80\, \text{mm}$.	2
232	Find the area $ A $ of a circle if radius $r = 45\, \text{mm}$.	2
233	Find the area $ A $ of a circle if radius $r = 1\, \text{mm}$.	2
234	Find the diameter $ d $ of a circle if diameter $d = 25\, \text{m}$.	2
235	Find the area $ A $ of a circle if area $A = 286\, \text{ft}^2$.	2
236	Find the diameter $ d $ of a circle if diameter $d = 270$.	2
237	Find the area $ A $ of a circle if area $A = 64$, circumference $C = 16$, radius $r = 8$ and diameter $d = 16$.	2
238	Find the area $ A $ of a circle if diameter $d = 16\, \text{ft}$.	2
239	Find the circumference $ C $ of a circle if area $A = 155$ and radius $r = 80$.	2
240	Find the diameter $ d $ of a circle if ???.	2
241	Find the area $ A $ of a circle if radius $r = 40\, \text{ft}$.	2
242	Find the area $ A $ of a circle if radius $r = 3$ and diameter $d = 6$.	2
243	Find the area $ A $ of a circle if radius $r = 0.04\, \text{mm}$.	2
244	Find the radius $ r $ of a circle if circumference $C = 1800$.	2
245	Find the circumference $ C $ of a circle if radius $r = 63$.	2
246	Find the diameter $ d $ of a circle if circumference $C = \frac{ 48 }{ 5 }$.	2
247	Find the diameter $ d $ of a circle if circumference $C = \frac{ 49 }{ 5 }$.	2
248	Find the area $ A $ of a circle if diameter $d = 74$.	2
249	Find the area $ A $ of a circle if radius $r = 6 \sqrt{ 2 }$.	2
250	Find the area $ A $ of a circle if diameter $d = 270$.	2