What is the surface area for a sphere with a meter of 4 meters rounded to the nearest square meter?
A. 50 m^2
B. 101 m^2
C. 201 m^2
D. 268 m^2
C the answer is c
4 pi r^2
with a WHAT of 4 meters? diameter, radius ?
201 if radius
50 if diameter
Please proof read before hitting Enter !
radius I meant to put. Thanks so much.
Thanks Aaliyah
No Prob. :)
To find the surface area of a sphere, you can use the formula: Surface Area = 4πr², where r is the radius of the sphere.
In this case, the radius of the sphere is given as 4 meters.
So, substitute the value of r into the formula: Surface Area = 4π(4²).
Calculate the value of 4² first: 4² = 4 × 4 = 16.
Now, substitute the value of 16 into the formula: Surface Area = 4π(16).
To find the surface area rounded to the nearest square meter, we need to calculate the value of 4π(16) and then round it to the nearest whole number.
Using the approximation value of π as 3.14, calculate 4π(16): 4 × 3.14 × 16 = 200.96.
Rounding 200.96 to the nearest whole number gives 201.
Therefore, the surface area of the sphere is approximately 201 square meters.
So, the correct answer is C. 201 m².