find the surface area of a sphere with diameter 30m. leave you answer in terms of pi
The radius of the sphere is half of the diameter, so it is r=15m. The surface area of a sphere is given by the formula:
SA = 4πr²
Substituting the value of r, we get:
SA = 4π(15²)
SA = 4π(225)
SA = 900π
Therefore, the surface area of the sphere with diameter 30m is 900π square meters.
To find the surface area of a sphere, you can use the formula:
Surface Area = 4πr²
where "r" is the radius of the sphere.
Given that the diameter (d) of the sphere is 30m, we can find the radius (r) by dividing the diameter by 2:
r = d/2 = 30m/2 = 15m
Now, we can substitute the value of the radius into the formula to calculate the surface area:
Surface Area = 4πr² = 4π(15m)² = 4π(225m²) = 900πm²
Therefore, the surface area of the sphere is 900πm².
To find the surface area of a sphere, you can use the formula:
Surface Area = 4πr²
where r is the radius of the sphere.
Given that the diameter of the sphere is 30m, we can find the radius by dividing the diameter by 2:
Radius (r) = Diameter / 2 = 30m / 2 = 15m
Now, substitute this value into the formula:
Surface Area = 4π(15m)²
= 4π(225m²)
= 900πm²
Therefore, the surface area of the sphere with a diameter of 30m is 900π square meters.