Will give brainliest answer

Answer:
4
Step-by-step explanation:
diameter = 2r
r = radius
radius = 2
2 * 2 = 4
Answer:
4 units
Step-by-step explanation:
the radius of the circle is 2 units. and the radius if half the size of the diameter.
so if we did 2 units × 2, that would give you 4 units.
therefore the answer is
4 units
i hope this helps you! <3