Circle – Solved Problems Database

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

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ID	Problem	Count
101	Find the diameter $ d $ of a circle if circumference $C = 19$.	2
102	Find the diameter $ d $ of a circle if circumference $C = \frac{ 146 }{ 5 }$.	2
103	Find the radius $ r $ of a circle if circumference $C = 18$.	2
104	Find the radius $ r $ of a circle if circumference $C = \frac{ 279 }{ 10 }$.	2
105	Find the area $ A $ of a circle if circumference $C = \frac{ 94 }{ 5 }$.	2
106	Find the radius $ r $ of a circle if circumference $C = \frac{ 203 }{ 5 }$.	2
107	Find the area $ A $ of a circle if area $A = 36$.	2
108	Find the radius $ r $ of a circle if circumference $C = \frac{ 63 }{ 10 }$.	2
109	Find the radius $ r $ of a circle if circumference $C = \frac{ 38 }{ 5 }$.	2
110	Find the radius $ r $ of a circle if circumference $C = \frac{ 49 }{ 5 }$.	2
111	Find the radius $ r $ of a circle if circumference $C = \frac{ 146 }{ 5 }$.	2
112	Find the diameter $ d $ of a circle if circumference $C = \frac{ 97 }{ 10 }$.	2
113	Find the diameter $ d $ of a circle if circumference $C = \frac{ 48 }{ 5 }$.	2
114	Find the diameter $ d $ of a circle if circumference $C = \frac{ 49 }{ 5 }$.	2
115	Find the radius $ r $ of a circle if radius $r = 2$.	1
116	Find the area $ A $ of a circle if radius $r = \frac{ 129 }{ 5 }$.	1
117	Find the diameter $ d $ of a circle if radius $r = \frac{ 129 }{ 5 }$.	1
118	Find the area $ A $ of a circle if diameter $d = \frac{ 6 }{ 5 }$.	1
119	Find the circumference $ C $ of a circle if diameter $d = \frac{ 6 }{ 5 }$.	1
120	Find the diameter $ d $ of a circle if circumference $C = 3$.	1
121	Find the area $ A $ of a circle if radius $r = 48$ and diameter $d = 96$.	1
122	Find the circumference $ C $ of a circle if circumference $C = 6\pi$, radius $r = \frac{ 11 }{ 2 }$ and diameter $d = 9$.	1
123	Find the circumference $ C $ of a circle if circumference $C = 6\pi$, radius $r = \frac{ 11 }{ 2 }$ and diameter $d = 18$.	1
124	Find the circumference $ C $ of a circle if circumference $C = 6\pi$, radius $r = 9$ and diameter $d = 18$.	1
125	Find the circumference $ C $ of a circle if area $A = 81\pi$, circumference $C = 6\pi$, radius $r = 9$ and diameter $d = 18$.	1
126	Find the diameter $ d $ of a circle if area $A = 36$ and diameter $d = 81$.	1
127	Find the diameter $ d $ of a circle if circumference $C = 1800$.	1
128	Find the diameter $ d $ of a circle if area $A = 10$.	1
129	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
130	Find the circumference $ C $ of a circle if diameter $d = \frac{ 137 }{ 100 }$.	1
131	Find the radius $ r $ of a circle if area $A = 65$.	1
132	Find the radius $ r $ of a circle if circumference $C = 430$.	1
133	Find the area $ A $ of a circle if area $A = 50$, circumference $C = 56$, radius $r = 3$ and diameter $d = 20$.	1
134	Find the area $ A $ of a circle if circumference $C = 56$, radius $r = 3$ and diameter $d = 20$.	1
135	Find the diameter $ d $ of a circle if area $A = 45$.	1
136	Find the area $ A $ of a circle if circumference $C = 6$.	1
137	Find the radius $ r $ of a circle if circumference $C = 56$, radius $r = 3$ and diameter $d = 20$.	1
138	Find the area $ A $ of a circle if radius $r = 63$.	1
139	Find the area $ A $ of a circle if circumference $C = 110$ and radius $r = 20$.	1
140	Find the area $ A $ of a circle if diameter $d = \frac{ 51 }{ 5 }$.	1
141	Find the area $ A $ of a circle if radius $r = \frac{ 61 }{ 10 }$.	1
142	Find the circumference $ C $ of a circle if radius $r = 5$.	1
143	Find the diameter $ d $ of a circle if radius $r = 5$.	1
144	Find the radius $ r $ of a circle if area $A = 354$.	1
145	Find the radius $ r $ of a circle if area $A = \frac{ 126 }{ 5 }$.	1
146	Find the area $ A $ of a circle if area $A = 2$, circumference $C = 2$, radius $r = 2$ and diameter $d = 2$.	1
147	Find the area $ A $ of a circle if radius $r = 125$.	1
148	Find the area $ A $ of a circle if area $A = 2$ and diameter $d = 2$.	1
149	Find the area $ A $ of a circle if area $A = 2$.	1
150	Find the area $ A $ of a circle if circumference $C = 8$ and radius $r = 2$.	1