For instance , if γ₁ = γ₂ = 40° and a theodolite with a spirit level of a sensitivity of 30 is misleveled by one division only ( i.e. ε_L = 30), then the error of the measured angled ε_β = 36".

We know what we must do. Let's go to work.

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Earlier, about the same time Rodney (who Ralph thought was upstairs in his room) last jaunted to the refreshment center, Ralph was outside getting a nosy looksee at the neighbors.