Tessellations aren’t just eye-catching patterns—they can be used to crack complex mathematical problems. By repeatedly reflecting shapes to tile a surface, researchers uncovered a method that links ...
OK, I have a triangle with vertices at points A, B and C. The distance from A to B is 78.23'. BC distance is 30.90'. The angle between these two sides, ABC, is 143 degrees. What is the distance AC?
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