Question

The area of a square is 225 square meters. What is the length of one side of this square?









A.
112.5 m







B.
15 m







C.

50,625 m








D.
75 m

Answer 1

@igotoschool
@iambatman

Answer 2

I think it is c

Answer 3

Area of a square is \[Area = a^2\] all you have to do is solve for a.

Answer 4

\[225=a^2\]

Answer 5

divid it by 2?

Answer 6

No, you want to get rid of the squared sign, on the a^2 so what would make the exponent on a equal to 1?

Answer 7

Hint: \[\sqrt{x} \implies x^{1/2}\]

Answer 8

can u explain little bit better

Answer 9

?

Answer 10

Ok lets say we have a simple problem as such.
\[\sqrt{x} = 3\]
And I ask you to say solve for x.
All you have to do is square both sides:
\[\left( \sqrt{x} \right)^2 = 3^2 \implies x^{2/2} = 9 \implies x = 9\]