Page 31 - Aeronautical Engineer Data Book

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km 2 - – – 2.59 – – – – 0.01 1

ha – - – 259 – – – 0.01 1 100

0.01 100 10 000
a - – – – – – 1

0.0929 0.8361 10 000
m 2 – – – 0.01 1 100 –

dm 2 0.06452 9.29 83.61 – 0.01 1 100 10 000 – –

cm 2 6.452 929 8361 – 1 100 10 000 – – –

sq.mile – - – 1 – – – – – 0.3861

sq.yd – 0.1111 1 – – 0.01196 1.196 119.6 – –

sq.ft - 1 9 – – 0.1076 10.76 1076 – –

sq.in 1 144 1296 – 0.155 15.5 1550 – – –
Table 2.9 Area (A) Unit 1 square inch 1 square foot 1 square yard 1 square mile 1 cm 2 1 dm 2 1 m 2 1 are (a) 1 hectare (ha) 1 km 2