Question

The area of a square garden is 200 m². How long is the diagonal?

Answer 1

100 m
20 m
m
400 m

Answer 2

@lalaly can u help

Answer 3

hmmmm?

Answer 4

yeah sure
area of square = side^2
so to find one of the sides\[side=\sqrt{200}\]
let diagonal be x
so to find diagonal use pythagoras theorem
\[x^2=side^2+side^2\]\[\text{ you know that }side^2=200 \]so \[x=\sqrt{200+200}=\sqrt{400}=20meters\]