13(d). Shouldn't this be "Determine the measure of \angle QPR so that students can continue working with \overrightarrow{PQ} \text{ and } \overrightarrow{PR} ?
There are two vectors labeled as v. My students and I assume that the third one in the list is supposed to be labeled w.
13(d). Shouldn't this be "Determine the measure of \angle QPR so that students can continue working with \overrightarrow{PQ} \text{ and } \overrightarrow{PR} ?
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