Question

expresses the diameter (d) of a circle in terms og its radius (r)​

Answer 1

Answer:

(In the adjoining figure, AB is the diameter of the circle; C is its centre). Express the diameter of the circle (d) in terms of its radius (r). ... Hence, the relation between d and r is d = 2r.

Answer 2

Answer: d=2r

Step-by-step explanation:

The diameter of a circle is the length from one end of the circle to the other end.

radius is from the centre of a circle to any part in the circle.

Therefore the radius is half of the diameter.

D/2=r

∴D=2r