Circle – Solved Problems Database

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

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ID	Problem	Count
51	Find the area $ A $ of a circle if area $A = 64$, circumference $C = 16$, radius $r = 8$ and diameter $d = 16$.	2
52	Find the area $ A $ of a circle if radius $r = 3$ and diameter $d = 6$.	2
53	Find the circumference $ C $ of a circle if circumference $C = 16$ and radius $r = 8$.	2
54	Find the area $ A $ of a circle if circumference $C = 2\pi$.	2
55	Find the area $ A $ of a circle if radius $r = 6 \sqrt{ 2 }$.	2
56	Find the area $ A $ of a circle if diameter $d = 6 \sqrt{ 2 }$.	2
57	Find the area $ A $ of a circle if diameter $d = 6$.	2
58	Find the circumference $ C $ of a circle if radius $r = 20$.	2
59	Find the circumference $ C $ of a circle if radius $r = 4$.	2
60	Find the area $ A $ of a circle if area $A = 65$.	2
61	Find the area $ A $ of a circle if radius $r = 5$ and diameter $d = 10$.	2
62	Find the radius $ r $ of a circle if area $A = \frac{ 5 }{ 4 }\pi$, circumference $C = 11\pi$, radius $r = 4$ and diameter $d = 8$.	2
63	Find the radius $ r $ of a circle if area $A = \frac{ 5 }{ 4 }\pi$, radius $r = 4$ and diameter $d = 8$.	2
64	Find the radius $ r $ of a circle if area $A = \frac{ 5 }{ 4 }\pi$.	2
65	Find the radius $ r $ of a circle if circumference $C = 1800$.	2
66	Find the circumference $ C $ of a circle if area $A = 430$, circumference $C = 6\pi$, radius $r = \frac{ 11 }{ 2 }$ and diameter $d = 60$.	2
67	Find the circumference $ C $ of a circle if area $A = 430$.	2
68	Find the circumference $ C $ of a circle if circumference $C = 430$.	2
69	Find the radius $ r $ of a circle if area $A = 4300$.	2
70	Find the circumference $ C $ of a circle if radius $r = 63$.	2
71	Find the area $ A $ of a circle if radius $r = \frac{ 51 }{ 5 }$.	2
72	Find the diameter $ d $ of a circle if diameter $d = \frac{ 51 }{ 5 }$.	2
73	Find the area $ A $ of a circle if radius $r = 3$.	2
74	Find the area $ A $ of a circle if circumference $C = 64$.	2
75	Find the area $ A $ of a circle if radius $r = 25$.	2
76	Find the diameter $ d $ of a circle if diameter $d = 270$.	2
77	Find the area $ A $ of a circle if radius $r = 6$.	2
78	Find the area $ A $ of a circle if diameter $d = 270$.	2
79	Find the radius $ r $ of a circle if area $A = 25$.	2
80	Find the diameter $ d $ of a circle if ???.	2
81	Find the area $ A $ of a circle if diameter $d = 74$.	2
82	Find the diameter $ d $ of a circle if circumference $C = 4$.	2
83	Find the diameter $ d $ of a circle if circumference $C = \frac{ 62 }{ 5 }$.	2
84	Find the radius $ r $ of a circle if circumference $C = 24$.	2
85	Find the area $ A $ of a circle if radius $r = 128$ and diameter $d = 256$.	2
86	Find the diameter $ d $ of a circle if area $A = \frac{ 7693 }{ 2500 }$.	2
87	Find the area $ A $ of a circle if area $A = 10$, circumference $C = 5$, radius $r = \frac{ 157 }{ 50 }$ and diameter $d = 2$.	2
88	Find the circumference $ C $ of a circle if area $A = 155$ and radius $r = 80$.	2
89	Find the circumference $ C $ of a circle if radius $r = 3454321$.	2
90	Find the circumference $ C $ of a circle if radius $r = 7$.	2
91	Find the circumference $ C $ of a circle if radius $r = 63$ and diameter $d = 135$.	2
92	Find the circumference $ C $ of a circle if area $A = 69$, radius $r = 70$ and diameter $d = 135$.	2
93	Find the circumference $ C $ of a circle if area $A = 69$, circumference $C = 69$, radius $r = 70$ and diameter $d = 135$.	2
94	Find the radius $ r $ of a circle if area $A = 26$.	2
95	Find the diameter $ d $ of a circle if circumference $C = 18$.	2
96	Find the area $ A $ of a circle if area $A = \frac{ 2573 }{ 100 }$.	2
97	Find the diameter $ d $ of a circle if circumference $C = \frac{ 279 }{ 10 }$.	2
98	Find the diameter $ d $ of a circle if circumference $C = \frac{ 203 }{ 5 }$.	2
99	Find the area $ A $ of a circle if radius $r = 37$.	2
100	Find the diameter $ d $ of a circle if circumference $C = \frac{ 63 }{ 10 }$.	2