Each geostationary satellite can provide reliable communication to points that lie up…

MATHEMATICS · Single correct · IB Diploma Programme · Mathematics: Analysis and Approaches · Geometry and Trigonometry · Geometry and Trigonometry

Problem

Each geostationary satellite can provide reliable communication to points that lie up to 81∘81^{\circ} of longitude away from its sub-satellite point on either side. What is the minimum number of such satellites required to ensure uninterrupted global coverage along the equator? (a) 4 (b) 3 (c) 2 (d) 5

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