The radius R of a sphere is 5.6cm. Calculate the sphere's surface area A.
Use the value 3.14, and round your answer to the nearest tenth.
To calculate the surface area A of a sphere, you can use the formula:
A = 4πR^2
Given that the radius R of the sphere is 5.6 cm, we can substitute this value into the formula:
A = 4π(5.6)^2
Now let's solve this equation step by step:
First, square the radius:
(5.6)^2 = 31.36
Next, multiply the squared radius by 4:
4 * 31.36 = 125.44
Finally, multiply the result by π (pi):
125.44 * 3.14 = 393.5584
Rounding the answer to the nearest tenth, the surface area A of the sphere is approximately 393.6 square centimeters.
Can you calculate 4 pi R^2?
If you need a calculator, just type
4*3.14*(5.6)^2 into a Google search box.
http://www.google.com/search?client=safari&rls=en&q=4*3.14*(5.6)%5E2&ie=UTF-8&oe=UTF-8