Question

If the length of a chord passing through the centre of a circle is 10cm. What's the radius of

the circle?​

Answer 1

Answer :-

Chord is the line segment which joins two points lying on the circumference of the circle.

If a chord is passing through the centre and the end points of the vertex are on the circle, this means that chord is the diameter.

Diameter is the chord which passes through the centre of the circle.

So, Diameter = 10 cm

We know that,

Radius = Diameter / 2

Radius = 10 / 2

Radius = 5 cm

Radius of circle = 5 cm

Additional information :-

The collection of all points in the plane, which are at fixed point in the plane, is called circle.

The fixed point is called centre and the fixed distance is called radius.

Diameter is the longest chord of the circle.

The length of the complete circle is called its circumference.