Question

Radius of a circle whose area is 16 π cm square​

Answer 1

Answer:

We see that our radius is √16 , or 4 . Recall that the diameter is twice the length of the radius, so we can multiply this by 2 to get a diameter

Answer 2

Explanation:

Use the formula for the area of a circle:

A = πr²

Here, the area is 16π:

16π = πr²

Divide both sides by π :

16 = r²

Take the square root of both sides:

√16 = √r²

4 = r

Since the radius of the circle is 4, the diameter is twice that:

d = 4 × 2 = 8