Step-by-step explanation:
d=2r
πr^2
10/2=r
5=r
5^2π
25π=78.5398
Hope that helps :)
Answer:
B
Step-by-step explanation:
True
There are only two negative integers, so there is no way it will become positive if you are adding them together.
It would be 2.5E-2 or with the power of 10 it would be 2.5 x 10^-2
