Respuesta :

1. THE DIAMETER OF F = CD

2. RADIUS OF F = CF OR FD [ AS F IS THE MIDDLE POINT AND ANY POINT FROM THE CENTRE IS TERMED AS RADIUS

3. CHORD OF F = AB

4. HERE 180° IS CD AS IT FORMS A STRAIGHT LINE

#1

  • F is situated in between C and D

So the diameter is CD

#2

Radius is 1/2CD=FD or FC

  • FE is also a radius

#3

  • AB is a chord .

#4

  • ARC (DCE) is of 180°