Give a definition for each of the following terms. (a) parallel lines (b)perpendicular lines (c) radius of a circle (d) square
Answers
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Step-by-step explanation:
Parallel lines : The lines which face each other and never meet even if extended .
Perpendicular lines : The lines which are straight and form a 90° angle.
Radius of circle : A line meeting the circle from the centre point .
( I will attach an image for better understanding )
Square : it's a polygon with 4 sides and all the sides are equal .
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Step-by-step explanation:
A) 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.
B) Perpendicular Lines - In elementary geometry, perpendicular is the adjectival form of perpendicularity, which is the relationship between two lines that meet at a right angle. The characteristic extends to other related geometric objects. A line is said to be perpendicular to another line if the two lines intersect at a right angle.
C) Radius of a Circle - In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel.
D) Square - In Euclidean geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles. It can also be defined as a rectangle in which two adjacent sides have equal length. A square with vertices ABCD would be denoted square ABCD.