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Table 4. Circumferences and Areas of Circles
T)uu.
ETEB IN
Inches
Abba Sq In. SqFt
ClRCUMFEBENCE
Inches
Feet
DIaueiEE
Abba
Inches
Sq In.
Sq Ft
ClfiCUHFEBENCB
Inches
Feet;
y* Yt
K
1
IK
IH
IK
2
2H 2Ys 2H 3
3H 3H 3H 4
4H 4H 4H 5
5M
5H. 5H 6
m 6}*
6K
7 7H
m 7H 8
SM
m.
m 0 9H
m m 10 10}*
ii
\m 12
12 }* 13 13}* 14 14}* 15
15H 16 16}* 17
w*
18 18*4 19
im 20 20}* 21 21}* 22 22}* 23 23}* 24
24H 25 25}* 26 26}* .27 27}*
0.049 0.196 0.442 0.785 1.227 1.767 2.405 . 3.142
3.976 4.909 5.939 7.069 8.296 9.621 11.04 12.57 14.19 15.90 17.72 19.64 21.65 23.76 25.97 28.27 30.68* 33.18 35.79 . 38.49 41.28 44.18 47.17 50.27 53.46 56.75 60.13 : 63.62 - 67.20 70.88 74.66 78.54 86.59 95.03 103.9 113.1 122.7 132.7 143.1 153.9 165.1 176.7 188.7 201.1 213.8 226.9 240.5 254.5 268.8 283.5 298.6 314.2 330.1 346.4
361.1 380.1 397.6 415.5 1 ' 433.7 452.4 471.4
490.9 510.7 530.9 551.6 572.6 593.9
0.0003
0.785
0.0014
1.571*
0.0031
2.356
0.0054
3.142
0.0085 . 3.927
0.0123
4.712
0.0167 ' 5.498
0.0218 *' 6.283
0.0276 ' 7.069
0.0341 ; 7.854
0.0412 8.639
0.0491
9.425
0.0576 .10.21
0.0668
10.99
0.0767
11.78
0.0873
12.57
0.0986
13.35
0.1104
14.14
0.1231 . 14.92
0.1364 . 15.71
0.1504
16.49
0.1650 17.28
0.1840 . r;'18.06
0.1964 7 18.85
0.2131
19.64
0.2304 .20.42
0.2486 21.21
0.2673 .21.99
0.2867 . 22.78
0.3068 23.56
0.3276 24.35
0.3491 ; 25.13
0.3713 25.92
0.3942 26.70
0.4175 ,27.49
0.4418 28.27
0.4668 -,29.06
0.4923 29.85-
0.5185 . 30.63
0.5454
31.42
0.6010 32.99
0.6600 - : 34.56
0.7215
36.13
0.7854
37.70
0.8520
39.27 '
0.9218 . 40.84
0.9937 .42.41
1.069
43.98
1.146
,45.55
1.227
47.12
1.310
48.69
1.396
50.27
1.485
51.84
1.576
53.41
1.670
54.98
1.767
56.55
1.867
58.12
1.969 ; 59.69
2.074
61.26
2.182
62.83
' 2.293
64.40.
'2.405
65.97 ..
2.508
67.54
2.640
69.12
2.761
70.69
2.885
72.26
3.012
73.83 :
3.142
75.40
3.274
76.97
3.409
78.54 .
3.547
80.11
3.687
81.68
3.832
83.25
3.976
84.82
4.125
86.39 .
0.0652 0.1309 o.idfc 0.2618 0.3273 0.3927 0.4582
0.5236 0.5891 0.6546 0.7200 0.7854
0.8510 0.9160 0.9818 1.047 1.113 1.178 1.243 1.309 1.374
1.440 .1.505 1.571 1.637 1.702 1.768 1.833 1.899 1.964
2.029 2.094 2.160 2.225 2.291 2.356 2.422 2.488 2.553
2.618 2.750 '2.880 3.011 3.142 3.273 3.403 3.535 3.665 3.796 3.927 4.058 4.189 4.321 4.451 4.582 4.712 4.845 4.974 5.105 5.236 5.367 -5.498 5.629 5.760 5.891 6.021 6.153 6.283 6.415 6.545 6.676 6.807 6.938 7.069 7.199
28 28}* 29 29}* . 30 31 32 33 34
35 36 37 38 39 40 41 42
43 44 45 46 47 .48 49 50 51 52 53 54 55 56 57 58 59 60 61 62
63 64
65 66 67 68 69 70 71 72
73 74
75 76 77 78 79 80 81 82 83 84
85 86
. ..87. . .
88 89 90 91 92 93 94
95. 96 97 98 99 100
616.8
4.276
637.9
4.430
660.52 4.587
683.5
4.747
706.8
4.909
754.8
5.241
804.3
5.585
855.3
5.940
907.9
6.305
962.1
6.681
1018.0
7.069
1075.0
7.467
1134.0
7; 876
1195.0
8.296
1256.0
8.727
1320.0
9.168
1385.0
9.621
1452.0 . 10.08
1521.0
10.56
1590.0
11.04
1662.0
11:54
1735.0
12.05
1810.0
12.51
1886.0
13.09
1963.0
13.64
2043.0
14.19
2124.0
14.75
2206.0
15.32
2290.0 15.90
2376.0
16.50
2463.0 17.10
2552.0
17.72
2642.0
18.35
2734.0
18.99
2827.0
19.63
2922.0 20.29
3019.0 20.97
3117.0 21.65
3217.0 22.34
3318.0 23.04
3421.0
23.76
3526.0 . 24.48
3632.0 25.22
3739.0
25.97
3848.0 26.73
3959.0 27.49
4072.0 .28.27
4185.0 29.07
4301.0 29.87 '
4418.0 30.68
4536.0 31.50
4657.0 32.34
4778.0 33.18
4902.0 34.04
5027.0
34.91
5153.0 35.78
5281.0 36.67
6411.0 .37.57
5542.0
38.48
5675.0 39.41
5809.0 40.34
5945.0 41:28
6082.0
42.24
6221.0 43.20
6362.0 44.18
6504.0 45.17
6648.0 i 46.16
6793.0 47.17
6940.0 . 48.19
7088.0 49.22
7238.0 50.27
7390.0 51.32
7543.0 52.38
7698.0 53.46
7854.0 54.54
87.97 89.54: 91.11
92.63 94.25 97.39 100.5 103.7 108.8 109.9 113.1 116.2
119.4 122.5 125.6 128.8 131.9 135.1 138.2 141.4 144.5 147.7 150.8 153.9 157.1 160.2 163.4
166.5 169.6 172.8 175.9 179.1 182.2 185.4
188.5 191.6 194.8 197.9 201.1 204.2
207.3 210.5 213.6 216.8 219.9 223.1 226.2 229.3 232.5 235.6 238.8 241.9 245.0 248.2 251.3 254.5 257.6 260.8 263.9 267.0 220.2 273.3
276.5 279.6 282.7 286.9 289.0 292.2 295.3 298.4
301.6 304.7 307.9 311.0 314.2
7.330 7.462 7.592 7.725 7.854 8.116 8.378 8.639 8.901 : 9.163 9.425 9.686 9.948 10.21 10.47 10.73 10.99 11.26 11.52 11.78 12.04 12.30 12.57 12.83:
13.09 13.35 13.61 13.88 14.14 14.40 14.66 14.92 15.18 15.45 15-71 15.97 16.23 16.49 16.76 17.02 17.28 17.54 17.80 18.06 18.33 18.59 18.85 19.11 19.37 19.63 19.90 20.16 20.42 20.68 20.94
21.21 21.47 21.73 21.99 22.25 22.51 22.78 23.04
23.56 23.82 24.09 24.35 24.61
25.13 25.39,
25.92