What is the cube root of 87.961783?

Question

Our question is to find the circumference of a soccer ball. Given was the 276.2in^3 volume of the ball. I tried to work backwards divide by 3.14 to get that, but all I have as a calculator is my cellular phone, obviously without cube root function.

Answer 1

Taking the cubed root is the same thing as raising it to the power of 1/3.

87.961783^1/3 = 4.447316195

Answer 2

You don't NEED to calculate any cube roots to solve the question...I think you may be thinking in the wrong direction! Think about it, if the volume is 276.2 in^2, the volume of a sphere can be calculated using the formula V=(4pi r^3)/3....

...then you know that 276.2= (4pi r^3)/3...

multiply both sides by 3

....then 828.6 = (4pi r^2)...

divide both sides by 4pi

...then 65.9379 = r^2

find the square root to determine the radius:

....r=8.120218 inches

multiply by pi to get the circumference...

circumference = 25.5 inches

Answer 3

cube root of 87.961783 is roughly 4.447316

you can also get the answer on a computer calculator by using exponents

87.961783 to the 1/3 power

I kept it to the amount of significant digits you used

Answer 4

The Aristocrats!

Answer 5

Cube root is 4.447316195.

Answer 6

the cube root is 4.447316195

Answer 7

Hi,

Without checking the rest of your math, the answer to your question is

4.447316195

Hope this helps,

James :-)

Answer 8

not sure try it on the calculator.

Answer 9

4.447316195

Answer 10

4.4473161951241167385478967458513