Answer:
The answer is option B
Step-by-step explanation:
Area of a circle = πr²
where
r is the radius of the circle
From the question
Area = 154cm²
To find the radius substitute this value into the above formula and solve for the radius
That's
154 = πr²
Divide both sides by π
We have
[tex] {r}^{2} = \frac{154}{\pi} [/tex]
Find the square root of both sides
Thats
[tex]r = \sqrt{ \frac{154}{\pi} } [/tex]
r = 7.0014086
We have the final answer as
radius = 7.0 cm
Hope this helps you
