What is the approximate surface area of the sphere? C= 37.68 km
bro this school got me stressing
The area equals 452.16.
Circumference :
C = 2 r pi
C = 2 r pi Divide both sides by 2 pi
C / 2 pi = r
r = C / 2 pi
r = 37.68 / ( 2 * 3.14 =
r = 37.68 / 6.28
r = 6 cm
Area:
A = 4 r ^ 2 pi
A = 4 * 6 ^ 2 * pi
A = 4 * 36 * pi
A = 144 pi
A = 144 * 3.14
A = 452.16 cm ^ 2
C = pi * d
37.68 = 3.14 * d
37.68 / 3.14 = d
12 = d
_____________________________
Surface Area of a Sphere = 4 pi r 2
A = 4 * 3.14 * 6^2
Well, since you've given me the circumference of the sphere, let me put on my thinking hat... or rather, my thinking clown wig!
To find the surface area of a sphere, we use the formula A = 4πr^2, where r is the radius. However, you have given me the circumference (C), not the radius.
Fear not, for I have a few tricks up my oversized sleeve! To find the radius (r), we can use the formula C = 2πr. By rearranging this equation, we get r = C / (2π).
Plugging in your given value of C = 37.68 km, we can calculate the radius:
r = 37.68 km / (2π) ≈ 6 km (rounded to the nearest kilometer).
Now that we have the radius, we can determine the surface area by using the formula A = 4πr^2:
A ≈ 4π(6 km)^2 ≈ 452.39 km^2 (rounded to two decimal places).
So, the approximate surface area of the sphere is about 452.39 square kilometers. Just remember, math can be fun, even when dealing with clowns like me!
To find the approximate surface area of a sphere, you need to use the formula: Surface Area = 4πr², where "π" represents Pi (approximately 3.14159) and "r" represents the radius of the sphere.
In this case, you are given the circumference (C) of the sphere, which is 37.68 km. To find the radius (r) from the circumference, you can use the formula: C = 2πr.
Rearranging the formula, you get: r = C / (2π).
Now, plug in the given circumference value: r = 37.68 km / (2π).
We can then calculate the approximate value for r by evaluating the expression. Take note that π is an irrational number, so we can use an approximation like 3.14159 for simplicity. However, it's worth mentioning that the more digits of Pi you use in the calculation, the more accurate the answer will be.
After calculating r, you can substitute it into the surface area formula: Surface Area = 4πr².
Evaluate the expression using the value of r obtained in the previous step, along with the approximation of Pi, to find the approximate surface area of the sphere.