Respuesta :

aarsheestar

Answer:

Area of square= d²/2

= 4²/2

= 16/2

= 8cm²

nafhausman

Step-by-step explanation:

A=

[tex]a {?}^{2} [/tex]

d=

[tex] \sqrt{2a} [/tex]

we can find A.USE THIS FORMULA

A =1/2 d squared

so 1/2×4 squared=8

8 is the answer

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