24
Perimeter is amount out all sides added together.
13x u add parentheses since two negatives positive
Answer:
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Step-by-step explanation:
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Answer:
parellel planes do not intersect
non-coplanar also dont
Answer:

Step-by-step explanation:
An obtuse angle in the triangle is opposite to the greatest side. The greatest side in the triangle with sides lengths 2, 2 and 3 is side with length 3. By the cosine rule,
