7. From the given illustration below, the law of cosines can be used because the A. three sides are known C. triangle is right B. three angles are unknown D. triangle is scalene
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7. From the given illustration below, the law of cosines can be used because the A. three sides are known C. triangle is right B. three angles are unknown D. triangle is scalene
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Answer:
7. A
Step-by-step explanation:
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