Answer:
78.5
Step-by-step explanation:
pi r^2
22/7 * 5^2
In the equation for surface area the radius is squared ( r^2)
If the radius is doubled, the radius would be 2^2 more which equals 4
The surface area would be 4 times the old surface area.
Answer:
hope this helps buddy, please mark the brainliest.
Step-by-step explanation: