Question

Can someone please help me with this ?

Answer 1

Alright, I'm going to walk you through this.

Answer 2

The problem specifically states that A=the area, and you were provided the area, so you just need to plug the area into the Circumference equation.

Answer 3

C=2sqrt(A*pi)
A=1225*pi
C=2sqrt((1225*pi)*(pi))

Answer 4

Could you tell me what 1225*pi is?

Answer 5

I'll be back when you're ready. :)

Answer 6

It's actually better to leave 1225*pi as is, rather than try to find its value. Substitute this 1225*pi for A in the formula. Then C = Sqrt(1225*pi). This could be written as
C=Sqrt(1225)*Sqrt(pi). How would you simplify this?

Answer 7

So is the equation C = 1225^2 * pi^2 ?

Answer 8

@Nnesha

Answer 9

when we convert square root to an exponent form
the index would become the denominator so
\[\huge\rm \sqrt[\color{Red}{n}]{x^\color{blue}{m}}=x^\frac{\color{blue}{ 1}}{ \color{ReD}{2} }\]

Answer 10

So the the equation to simplify is (√1225) * (√pi) ?

Answer 11

C = (√1225) * (√pi) ?

Answer 12

well the formula is \[\huge\rm C=\sqrt{\color{Red}{A }\color{blue}{\pi}}\]
and A=1225 pi
and there is another pi in the formula

Answer 13

So should it be C = √1225pi * pi ?

Answer 14

yes correct \[\huge\rm C=\sqrt{\color{Red}{1225\pi }*\color{blue}{\pi}}\]

Answer 15

remember the exponent rule when we multiply same bases we should ?

Answer 16

OK, so the answer would be 35pi, right?

Answer 17

looks good to me