The radius is 5cm
Step-by-step explanation:
The surface area of a sphere is given by:
[tex]SA = 4\pi r^2[/tex]
Here
Given
SA = 100π cm^2
Putting the values in the formula
[tex]100\pi = 4\pi r^2\\r^2 = \frac{100\pi}{4\pi}\\r^2 = 25[/tex]
Taking square root on both sides
[tex]\sqrt{r^2} = \sqrt{25}\\r = 5 cm[/tex]
The radius is 5cm
Keywords: Surface area, Radius
Learn more about surface area of sphere at:
- brainly.com/question/1388658
- brainly.com/question/1386181
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