find the surface area for a sphere with the radius of 10 feet. Round to the nearest whole number
The surface area of a sphere with a radius of 10 feet is 1,256 square feet.
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 given radius is 10 feet.
Substituting the value of the radius into the formula, we get:
Surface Area = 4π(10)².
Now, let's calculate:
Surface Area = 4π(100)
= 400π.
To round the result to the nearest whole number, we need to compute the numerical value of π (pi). Since π is an irrational number that goes on indefinitely, we typically use an approximation of π, such as 3.14 or 22/7.
Using the approximation π = 3.14:
Surface Area ≈ 400 × 3.14
= 1256.
Rounding 1256 to the nearest whole number, we get the final answer:
Surface Area ≈ 1256 feet².
To find the surface area of a sphere, you can use the formula:
Surface Area = 4πr^2
Given that the radius of the sphere is 10 feet, we can substitute this value into the formula:
Surface Area = 4π(10)^2
Calculating this, we get:
Surface Area = 4π(100)
Surface Area ≈ 1256.637
Rounding to the nearest whole number, the surface area of the sphere with a radius of 10 feet is 1257 square feet.