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Perpendicular Lines

NO and PQ are

Question

NO and PQ are

A

Intersecting lines

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B

Rays

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C

Parallel lines

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D

Line segments

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Solution

The correct option is A
Intersecting lines

NO and PQ can be extended indefinitely on both sides, so they are lines. On extending, it can be seen that they would meet at a point. Hence, they are intersecting lines.

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Similar questions

Define the following terms:
(i) Line segment (ii) Collinear points
(iii) Parallel lines (iv) Intersecting lines
(v) Concurrent lines (vi) Ray

Q. Which of the following statements are true and which are false?
(i) Two lines are parallel if they do not meet, even when produced.
(ii) Two parallel lines are everywhere the same distance apart.
(iii) If two line segments do not intersect, they are parallel.
(iv) If two rays do not intersect, they are parallel.

Q. State which of the following statements are true (T) or which are false (F):

(i) If two lines in the same plane do not interest, then they much be parallel.
(ii) Distance between two parallel lines is not same every where.
(iii) If m ⊥ i, n ⊥ i and m ≠ n, then m ∥ n.
(iv) Two non-intersection coplanar rays are parallel.
(v) If ray AB ∥ line , then line segment AB ∥ m.
(vi) If line AB ∥ line , then line segment AB ∥ m.
(vii) No two parallel segments intersect.
(viii) Every pair of lines is a pair of coplanar lines.
(ix) Two lines perpendicular to the same line are parallel.
(x) A line perpendicular to one of two parallel lines is perpendicular to the other.

Q. Define the following:
(i) Point
(ii) Line
(iii) Line segment
(iv) Ray
(v) Angle
(vi)Plane
(vii) Parallel Line
(viii) Intersecting Lines
(ix) Vertex

Q. Which of the following statements are true?
(i) A line segment has no definite length.
(ii) A ray has no end-point.
(iii) A line has a definite length.
(iv) A line

\overset{\leftrightarrow}{A B}

is same as line

\overset{\leftrightarrow}{B A}

\underset{A B}{\to}

\underset{B A}{\to}

.
(vi) Two distinct points always determine a unique line.
(vii) Three lines are concurrent if they have a common point.
(viii) Two distinct lines cannot have more than one point in common.
(ix) Two intersecting lines cannot be both parallel to the same line.
(x) Open half-line OA is same as ray

\underset{O A}{\to}

.
(xi) Two lines may intersect at two points.
(xii) Two lines l and m are parallel only when they have no point in common.

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