SOLUTION: The area of a square is 50. what is the length of the diagonal?? Thank you !

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Question 254586: The area of a square is 50. what is the length of the diagonal??
Thank you !

Found 3 solutions by richwmiller, solver91311, jojo14344:
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
A=s^2
50=s^2
let c=diagonal a and b the sides
a=s
b=s
a^2+b^2+c^2 where c=the diagonal and both a^2 and b^2 =s^2
The diagonal will be 2s^2=c^2
2*50=c^2
100=c^2
c=10 the diagonal equals 10

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Pythagoras says that the measure of the diagonal of a square is the square root of 2 times the measure of one of the sides squared.



But since the measure of a side squared is the area of a square we can write:



Substitute the given area for A and do the arithmetic.


John


Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!


If the Area of a Square is 50 sq units, we can compute the sides.


By definition, A%5BSQ%5D=s%5E2
50%28sq%29units=s%5E2
s=sqrt%2850%29units ----> Sides

----> Pythagorean Theorem: d%5E2=s%5E2%2Bs%5E2
d%5E2=%28sqrt%2850%29%29%5E2%2B%28sqrt%2850%29%29%5E2=50%2B50
d=sqrt%28100%29
highlight%28d=10units%29, Answer

Thank you,
Jojo