Given That the Moon Has an Angular Diameter of About $\frac{\mathrm{s}}{2 \pi \mathrm{d}}$

question 65

Essay

Given that the Moon has an angular diameter of about 0.5° and an average distance of about 380,000 km from Earth,calculate its actual diameter.(Hint: Recall the angular separation formula α = $\frac{\mathrm{s}}{2 \pi \mathrm{d}}$ × 360°. )

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