4)Prove that, if a line is perpendicular to one of the two parallel lines, then it is perpendicular to the other
line also
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Answered by
1
Step-by-step explanation:
To prove if AD perpendicular to MN, it is also perpendicular to OP
ABN=90
o
( SInce AD is perpendicular to MN)
BCP=ABN=90
o
Answered by
1
Step-by-step explanation:
(take the above picture as a direction to understand)
Let us mark the points A and B on line m, C and D on line n and P and Q on line l. Suppose the line l intersects line m and line n at K and L respectively. Since, line l ⊥ line m, then ∠PKB = 90∘. ∴ line l ⊥ line n.
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