Question

Define the following.
(1) Parallel lines (ii) Radius of a circle.​

Answer 1

Answer:

1)Parallel lines: In geometry, parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel. Colloquially, curves that do not touch each other or intersect and keep a fixed minimum distance are said to be parallel.

2)Radius of a circle: A straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. the length of such a line.

Step-by-step explanation:

Answer 2

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1) If two lines are such that they never meet one another on producingfrom both the sides, then they are said to be parallel to each other.

2) A radius is a straight line from the center of a circle to the circumference of a circle.