SA = 265.9 in2
28.27
The surface area is 1,520.53 square inches.
radius = square root of (531/pi) = 13 inches to the nearest integer
The area of a circle is: pi times radius squared
if you mean a radius of 5 units then the answer is 78.54 APEX
47.25
2000.00
To the nearest hundredth, the circumference of a circle with a radius of 4 is 25.13
The answer is 452.16.
The area of a circle (to the nearest hundredth) with a 5-unit radius is: 78.54 square units.
A cylinder's length is 12 inches, and its radius is 6 inches. What is the surface area of the cylinder to the nearest tenth ?
If you have the radius, then area = pi*r2 which you then round to the nearest hundredth. If you do not know the radius but do know the diameter or circumference, you can calculate the radius. Otherwise you need to measure it.
8.28
28.27
37.69
2*pi*r = 9 r = 9/(2*pi) r = 1.432394488 radius = 1.43 units to the nearest hundredth
138.23