A circle with radius 4 has a sector with central angle of 8/5pi radians.

(64/5)π units²

Step-by-step explanation:

The area of this sector would be:

Given central angle

*(area of whole circle)

            2π rad

In this case, the area of the sector is:

      (8/5) π rad

* π(4 units)^2

            2π rad

and this reduces to:

(4/5) * π*16 units²      or  (64/5)π units²

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

step-by-step explanation:

triangle and cube

step-by-step explanation: