| Geometry - 1973
...test the accuracy of the following approximate rule: — "To find the length of an arc, from eight **times the chord of half the arc subtract the chord of the whole arc, and** divide the result by three." (It will be necessary to measure the length of the chords.) Ex. 1319.... | |
| 1897
...find the length of an arc, the chord of the arc, and the chord of half the arc being given — (12) **From 8 times the chord of half the arc subtract the chord of the** u>ho!c arc, and divide theremainder by 3. SUMMARY OF PROPERTIES OF THE CIRCLE. At this stage it may... | |
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