of the
Week
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Problem of the Week |
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The three black lines intersect at the common point O and form 60° angles with each other, see the figure on the left. Draw any line in the plane not containing the point of intersection O. This line intersects the black lines at the points A, B, C. Given any two of the lengths OA, OB, OC, how do you find the third? You are visitor number 5520
to this
page.
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