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BaLLatris [955]
3 years ago
8

What is a counterexample for if a shape has 4 sides its a rectangle

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0

parallelogram

Step-by-step explanation:

it has 4 sides but is not a rectangle

Rasek [7]3 years ago
5 0
Using numbers it helps label the rectangle
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Given:

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Solution:

According to the Law of Cosines:

\cos A=\dfrac{b^2+c^2-a^2}{2bc}

Using Law of Cosines in triangle OPQ, we get

\cos P=\dfrac{o^2+q^2-p^2}{2oq}

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Therefore, the measure of angle P is 79 degrees.

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