The formula for the surface area of a sphere is $4\pi r^2$, where $r$ is the radius of the sphere.
Given that the surface area of the sphere is $7.84 \pi \, \text{ft}^2$, we can set up the equation $4\pi r^2 = 7.84 \pi \, \text{ft}^2$.
Dividing both sides of the equation by $4\pi$, we get $r^2 = \frac{7.84 \pi}{4\pi} = 1.96$.
Taking the square root of both sides, we find $r = \sqrt{1.96} \approx 1.40$.
Therefore, the radius of the sphere is approximately 1.40 ft.
The surface area of a sphere is 7.84π ft.2 What is the radius of this sphere?(1 point)
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