Question

what is radius
what is chord
what is tangent
what is circumference

Answer 1

1)The radius of a circle is the half of its diameter
R=d/2
2) A chord is drawn on a circle from two points joining each other.
3) A tangent is a point touching the circle at a point from out side.
4) The circumference is the area of the circle.

Answer 2

Hi....

A line joining the centre of the circle to any point on circle is the radius.

A line joining any two points on the circle is its chord..

A line touching only one point on the circle is its tangent.

The circumference of the circle is its length...

Hope this helps you.... ☺☺