Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
is parallel to , and is perpendicular to .
The number of 90° angles formed by the intersections of and the two parallel lines and is
Answers
Answer:
intersect each other
Step-by-step explanation:
90degree + 90degree = 180degree /\
The complete question is,
Instructions: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° angles formed by the intersections of Ef and the two parallel lines AB and CD is ____
Consider the attached figure for a clear view.
As the given question is bit unclear, so we need to consider 2 cases.
Case (i) EF is perpendicular to only AB
The number of 90° angles formed by the intersections of Ef and AB is
Four 90° angles are formed, as these two lines form 4 quadrants.
Case (ii) EF is perpendicular to both AB and CD.
The number of 90° angles formed by the intersections of Ef and the two parallel lines AB and CD is
Eight 90° angles are formed, as 2 lines form 4 quadrants, similarly another 2 lines form 4 quadrants, therefore a total of 8 quadrants.
