Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Area, Surface & Volume
easy
0:00.0
What is the surface area of a sphere with radius
r
=
1
r=1
r
=
1
?
A
1
π
1\pi
1
π
B
2
π
2\pi
2
π
C
4
π
4\pi
4
π
D
8
π
8\pi
8
π
Submit Answer