Asked by jerimiah

If vector |a| = 12 cm, |b| = 13 cm, and the angle between them when placed tail to tail is 35°, find |a × b| to the nearest centimetre.
Answered by Steve
|a × b| = |a| * |b| * sinθ

just plug in your numbers!
Answered by Anonymous
.... and no need for placing them head to tail by the way.
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