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One of the most fundamental truths of (Euclidean) geometry is that the ratio of the circumference to the diameter of any circle is a constant, and that constant is called pi (denoted by π π). Let C be the (length of the) circumference of a circle, and let d be its diameter. Then, we must have: C d = π C d = π
Answer:
23.91
Step-by-step explanation:
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Answer:
163
Step-by-step explanation:
vertical angles are congruent
