c (circumference) c=pie d
where d is the diameter.
How do i find d to the nearest hundredth when c=39cm?
and i have to solve the formula C=pie d for d.
C = pi * d
39m = 3.14d
39/31.4 = d
?? = d
Thanks.
You're welcome. But please correct my error.
The third line should be:
39/3.14 = d
To find the diameter (d) when the circumference (c) is given, you can rearrange the formula C = πd to solve for d. Here's how you can do it:
1. Start with the formula C = πd.
2. Divide both sides of the equation by π to isolate d: C/π = d.
3. Substitute the given value of the circumference (c = 39 cm) into the equation: d = c/π.
4. Calculate the value of d by dividing 39 by the value of π (approximately 3.14159) using a calculator: d ≈ 39 / 3.14159.
5. Evaluate the expression and round the answer to the nearest hundredth: d ≈ 12.37 (rounded to two decimal places).
Therefore, when the circumference is 39 cm, the diameter to the nearest hundredth is approximately 12.37 cm.