In the sketch below, ∠DEF{“version”:”1.1″,”math”:”∠DE…
In the sketch below, ∠DEF{“version”:”1.1″,”math”:”∠DEF”} and ∠GHI{“version”:”1.1″,”math”:”∠GHI”} are supplementary angles. The measure of ∠GHI{“version”:”1.1″,”math”:”∠GHI”} is 48°{“version”:”1.1″,”math”:”48°”}. What the measure, in degrees, of ∠DEF{“version”:”1.1″,”math”:”∠DEF”}?
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