How many square yards would it take to cover a ball that had a radius of 3'?
3' = 1 yard
SA = 4 * pi * r^2
SA = 4 * 3.14 * 1^2
SA = 12.56 square yards
To determine the number of square yards required to cover a ball with a given radius, we need to calculate the surface area of the ball. A sphere's surface area formula is 4πr², where "r" represents the radius.
In this case, the radius is 3 feet. However, to convert it to yards, we need to consider that 1 yard is equal to 3 feet.
So, to convert the radius to yards, we need to divide 3 feet by 3, which gives us 1 yard.
Now we can substitute the radius (1 yard) into the formula:
Surface Area = 4π(1 yard)²
Calculating this equation, we get:
Surface Area = 4π(1 yard)²
= 4π(1 yard) = 4π square yards
Therefore, it would take 4π square yards to cover a ball with a radius of 3 feet.