A circle has only finite number of equal chords.

Write the truth value $(\mathrm{T}/\mathrm{F})$ of the following with suitable reasons:

A chord of a circle, which is twice as long is its radius is a diameter of the circle.

Sector is the region between the chord and its corresponding arc.

The degree measure of an arc is the complement of the central angle containing the arc.

The degree measure of a semi-circle is $180°$.