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The formula$L=\frac{d R}{D-d}$where $D$ is the diameter of the sun, $d$ is the diameter of the earth, $R$ is the earth's distance from the sun, and $L$ is some fixed distance, is used in calculating when lunar eclipses occur. Solve for $D .$
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This gives us: \[L \cdot D = d \cdot R\] Show more…
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The formula $$ L=\frac{d R}{D-d} $$ where $D$ is the diameter of the sun, $d$ is the diameter of the earth, $R$ is the earth's distance from the sun, and $L$ is some fixed distance, is used in calculating when lunar eclipses occur. Solve for $D .$
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