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Mathematics, 15.06.2021 17:00 ciya12

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

AB is parallel to CD, and EF is perpendicular to AB.
(AB, CD, EF and AB all have straight lines over them but my keyboard can't do that)

The number of 90° angles formed by the intersections of and the two parallel lines and is ___
.

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Answers: 2

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