Write the coordinates of the vertices after a reflection across the line x = 1.
1 answer:
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Answer:
Cosine
Step-by-step explanation:
If the triangle is not right-angled, and there is not a matching pair, you will need the Cosine Rule..
and the formula used will be:
In the opposite case if the triangle is not right-angled, and there is a matching pair, you will need the Sine Rule..