Question

Find surface area of a circular solid. A sphere with d= 10.4 yd

Answer 1

To find the surface area of a spherical solid, we use the formula A = 4πr², where r is the radius of the sphere. In this case, the diameter d is given as 10.4 yd. We can calculate the radius r by dividing the diameter by 2: r = d/2 = 10.4/2 = 5.2 yd. Now we can substitute the value of r into the surface area formula: A = 4π(5.2)².

Step-by-step explanation:

To find the surface area of a spherical solid, we use the formula A = 4πr², where r is the radius of the sphere.

In this case, the diameter d is given as 10.4 yd. We can calculate the radius r by dividing the diameter by 2: r = d/2 = 10.4/2 = 5.2 yd.

Now we can substitute the value of r into the surface area formula: A = 4π(5.2)². Using a calculator, we can evaluate this to find the surface area of the sphere.

Answer 2

A = 339.8 yd^2

Step-by-step explanation:

The formula for the surface area of a sphere of radius r is:

A = 4*pi*r^2. In this case, d = 10.4 yd leads to r = 5.2 yd.

Then the surface area of this sphere is

A = 4*pi*(5.2 yd)^2 = 339.8 yd^2