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Please solve for the side CA.

Please solve for the side CA.-example-1

2 Answers

5 votes

Answer:

16 mm

Explanation:

cosine rule: c^2 = a^2 + b^2 - 2abcosC

15^2 + 10^2 - 2(15)(10) × cos(20) = 255.051288633

root 255.051288633 = 15.9703252513

round to 16 for suitable scaling

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