Its radius is: 8/2 = 4ft
The area is 9.2376 square feet.
The area increases as the square of the radius (or diameter). So if you double the radius you * 4 (quadruple) the area. Treble the radius, you *9 the area.
The answer depends on whether the 4 foot measure is the radius or the circumference.
The surface area is 377ft2
Its radius is: 8/2 = 4ft
25.12ft
The volume is Base x height; the Base area is the same as the formula for a circle - which is proportional to the square of the radius. For example, if you double the radius (or the diameter, or the circumference) of a circle, its area will quadruple.
Radius
Quadrupling the base radius will do that.
The area increases as the square of the radius (or diameter). So if you double the radius you * 4 (quadruple) the area. Treble the radius, you *9 the area.
The area is 9.2376 square feet.
The area increases as the square of the radius (or diameter). So if you double the radius you * 4 (quadruple) the area. Treble the radius, you *9 the area.
The surface area of this cylinder is 376.99ft2
The answer depends on whether the 4 foot measure is the radius or the circumference.
The surface area is 377ft2
Circumference=2πr=2 xπ x4≈25.13