Date
1
120
3)
Show that if a straight line is perpen-
dicular to one of the two or
parallel lines, then it is also perpendicular
to the remaining lines
Answers
Answered by
2
Answer:
what I don't understand...
Answered by
8
Answer:
Let us assume that AB∥CD
PQ is perpendicular to AB
We have to prove that PQ is perpendicular to CD
∠PQB=90
o
(given)
∴∠QRD=∠PQB=90
o
Corresponding angles of parallel lines
∴PQ is perpendicular to CD
solution
Similar questions