What is the longest chord ?

Statement(A): Diameter is the longest chord in the circle Statement(B):We can draw infinite no of chords in a circle

State which of the following statements are true and which are false : Diameter is the longest chord of the circle.

The lenght of the longest chord of a circle is 10 cm. What is the lenght of its radius ?

A chord bar(AB) is 3 cm. from the center of a circle with radius 4. What is the length of chord bar(AB) ?

In a circle of radius 8 cm, AB and AC are two chords such that AB = AC = 12 cm. What is the length of chord BC ?

In a circle of radius 5cm, AB and AC are two chords such that AB=AC=8 cm. What is the length of chord BC?

Given a circle with centre O and radius 2.5cm, what is the length of the longest chord of the circle