| 1. | Trigonometrical stations are grouped together to form a network of triangulation.
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| 2. | On the north peak erects a pavilion and a trigonometrical station.
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| 3. | He also discovered spherical trigonometry, along with other interesting trigonometrical results.
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| 4. | Later he was selecting trigonometrical stations on the mountains in South Wales.
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| 5. | An Ordnance Survey trigonometrical station is located at the top of Cupidstownhill.
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| 6. | He was afterwards connected with the Trigonometrical Survey of New South Wales.
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| 7. | Their commissions included a trigonometrical survey of rugged J . H . Angas.
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| 8. | On the hilltop is a trigonometrical point used by Ireland's Ordnance Survey.
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| 9. | He worked at around the same time as Colonel Lambton began the Trigonometrical Survey.
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| 10. | Astronomy, time-keeping and geography provided other motivations for geometrical and trigonometrical research.
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मोबाइल