Question

The lenght from the center of teh circle to a point on the circle is r = square root of 40
what is the length of the radius

the answer is 2 and squareroot 10?

Answer 1

\[
\sqrt{40} = \sqrt{4}\times\sqrt{10}=2\sqrt{10}
\]

Answer 2

oh THANK YOU

Answer 3

:)

Answer 4

but the first number has to be a perfec square right?

Answer 5

Yes

Answer 6

You can pull out any perfect squares.

Answer 7

Since \(40=2\cdot 2\cdot 2\cdot 5\) you can pull out the \(2\cdot 2\), and he \(2\cdot 5\) remains inside.