The point right in the middle of the circle is called the --------------.
------------------- = 2X radius. When two lines cut each other at right angles, the lines are called ------------ lines.
Answers
Answer:
Step-by-step explanation:
A circle is the set of all points in the plane that are a fixed distance (the radius) from a fixed point (the centre).
Any interval joining a point on the circle to the centre is called a radius. By the definition of a circle, any two radii have the same length. Notice that the word ‘radius’ is being used to refer both to these intervals and to the common length of these intervals.
An interval joining two points on the circle is called a chord.
A chord that passes through the centre is called a diameter. Since a diameter consists of two radii joined at their endpoints, every diameter has length equal to twice the radius. The word ‘diameter’ is use to refer both to these intervals and to their common length.
A line that cuts a circle at two distinct points is called a secant. Thus a chord is the interval that the circle cuts off a secant, and a diameter is the interval cut off by a secant passing through the centre of a circle centre.
Answer:
Step-by-step explanation:
Centre of circle
Diameter = 2 × Radius
Perpendicular