Hand book of calculations for engineers and firemen : Relating to the steam engine, the steam boiler, pumps, shafting, etc. . Fig. 80. Problem IX. To find thecenter of a circle or of an arc ofa circle. First for a circle, .%/Fig. 81. Draw the chord A B, *\bisect it by the perpendicu-lar C D, bounded both ways bythe circle; and bisect C D forthe center S Fig. 81. 142 Hand Book of Calculations. GEOMETRICAL PROBLEMS. Problem X. Through two given pointsto describe an arc of a circle with a givenradius. Fig. 82. On the points A and Bas centers, with the given radius, describearcs cutting at C;

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Hand book of calculations for engineers and firemen : Relating to the steam engine, the steam boiler, pumps, shafting, etc. . Fig. 80. Problem IX. To find thecenter of a circle or of an arc ofa circle. First for a circle, .%/Fig. 81. Draw the chord A B, *\bisect it by the perpendicu-lar C D, bounded both ways bythe circle; and bisect C D forthe center S Fig. 81. 142 Hand Book of Calculations. GEOMETRICAL PROBLEMS. Problem X. Through two given pointsto describe an arc of a circle with a givenradius. Fig. 82. On the points A and Bas centers, with the given radius, describearcs cutting at C; and from C, with thesame radius, describe an arc A B as re-quired.

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Keywords: ., book, bookcentury1800, bookdecade1890, bookpublishernewyorktaudel