Victor measured a circular lid and found d, the diameter, was 8 inches and C, the circumference was 25 inches. Which expression represents an approximate value for π

And we also know that circumference C =25 inches and the formula for this circumference is given by:

We want to find the value of and solving from the last equation we got:

And replacing we got:

So then the approximation for the value of and that's very close to the real value of

Step-by-step explanation:

For this case we know that the diameter d =8 in. And we can find the radius from this info since d = 2r with r representing the radius. If we solve for r we got:

And we also know that circumference C =25 inches and the formula for this circumference is given by:

We want to find the value of and solving from the last equation we got:

And replacing we got:

So then the approximation for the value of and that's very close to the real value of

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680