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. The number of 90 degree angles formed by the intersections of EF and the two parallel lines AB and CD is ...? Help Pleaseee
If EF is a line perpendicular to AB, then it forms four (90 degrees) angles intersecting AB. If AB is parallel to CD, and EF also intersects CD, then it form another four (90 degrees angles again. Total 90 degrees angles formed is 8.
