Answer:
Step-by-step explanation:
It's 2.3 as the centre of a circle is twice the circumference learn the circle theorem
Circumference of a circle is 2πr
where r is the radius
radius = diameter/2
diameter = 4.6km
radius = 4.6/2 = 2.3km
Circumference = 2 × π × 2.3
= 4.6π
= 14.451km
= 14km to the nearest tenth
Hope this helps
