Question

the total surface area of a solid sphere is 154 cm^2.find the radius of the sphere.​

Answer 1

Answer:

3.5 cm

Step-by-step explanation:

Given surface area sphere =154 sq cm

Then 4πr^2=154

⇒4×$\frac{22}{7}$ ×r ^2 =154

⇒r^2=$\frac{154*7}{22*4}$= 12.25

⇒r=3.5cm  

So the radius is 3.5 cm..

hope it helps u....

Answer 2

Answer:

Please open this attachment Dear.