Cylinder volume with height h = 1 and the radius of the base r = 7 equal 153.934
A cylinder is a geometric body closed between two parallel bases that are circles.
Cylinder volume formula: 
where h is the height of the cylinder,r is the radius of the base
where h is the height of the cylinder,d is the diameter of the base
where h is the height of the cylinder,S is the area of the baseSolution:
V = π·r2 · h
= π·72 · 1
= π·49 · 1
= 49·π
=
153.934
a: Cylinder volume with height h = 1 and the radius of the base r = 7 equal 153.934