The subterranean tension ring that exerts the balancing horizontal force on the abutments for the dome if Fig. 9-34 is 36-sided, so each segment makes

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The subterranean tension ring that exerts the balancing horizontal force on the abutments for the dome if Fig. 9-34 is 36-sided, so each segment makes a 10o angle with the adjacent one (Fig. 9-70). Calculate the tension F that must exist in each segment so that the required force of 4.2 X 105 N can be exerted at each corner (Example 9-13).

-F 5 5 420,000 N Buttress