umbrella has 8 ribs which are oqually spaced(se Fig. 12.13) Assuming u – InterviewSolution

1.	umbrella has 8 ribs which are oqually spaced(se Fig. 12.13) Assuming umbrella tobe a fat circleof adius 45 cm, find the area betweon the twoconsecuti ve ribs of the umbrella.10. An
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