1 year ago

A circle has a radius of 6 cm. Find its exact circumference.

Mathematics

1 answer:

lozanna [386]1 year ago

8 0

The radius of circle is r = 6 cm.

The formula for the circumference of circle is,

$C=2\pi r$

For exact circumference take pi = 3.14.

Substitute 6 for r in the formula to determine the circumference of circle.

$\begin{gathered} C=2\pi\cdot6 \\ =12\pi \\ =37.68 \end{gathered}$

So exact circumference of circle is 37.68 or 12 pi .

You might be interested in

1. Martin makes $7.00 per hour working at Walmart and $10.00 per hour at a restaurant. Next week,

Andru [333]

H=10
He makes $42 from Walmart.($7x6hrs) , which means he needs to make $100 at the restaurant. If he works 10 hrs at $10/hr= $100.
So Walmart $42+ $100 at restaurant =$142.

7 0

3 years ago

Factor x^2 -3x-3 in F5(x) p=5

denis-greek [22]

$-3=2-5\implies -3\mod5=2\mod5$

When taking a polynomial modulo $n$ , you reduce its terms' coefficients modulo $n$ , so that, in conjunction with the result above,

$x^2-3x-3\equiv x^2-3x+2\mod5$

For completeness, the linear term's coefficient should also get reduced in the same way as the constant term, so that

$x^2-3x-3\equiv x^2+2x+2\mod5$