Question

The equation C = 2nr is the formula that relates the circumference of a circle to the radius. This gives us the ability to calculate pi if we physically measure a circle's circumference and radius. Solve the equation for n to get the formula you would use to perform this activity. Don't know answer

Answer 1

Explanation:

To solve the equation C = 2nr for n, we can isolate n by dividing both sides by 2r:

C = 2nr

C/2r = n

Therefore, the formula to calculate pi using the circumference and radius of a circle is:

π = C/2r

We can rearrange this formula to solve for C, r, or π as needed. For example, to solve for π, we can multiply both sides by 2r/C:

2rπ = C

Therefore, the formula to calculate π using the circumference and radius of a circle is:

π = C/2r

We can rearrange this formula to solve for C, r, or π as needed. For example, to solve for π, we can multiply both sides by 2r/C:

2rπ = C

Therefore, if we measure the circumference and radius of a circle, we can use the formula π = C/2r to calculate an estimate for the value of pi.