Euclid's Elements: Book 3, Prop 32
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- Опубліковано 9 гру 2023
- Mr Burnham's step by step board presentation of Book 3, Proposition 32: "If a straight line touches a circle, and from the point of contact there is drawn across, in the circle, a straight line cutting the circle, then the angles which it makes with the tangent equal the angles in the alternate segments of the circle."