Question

Un disc are aria 256 pi cm*
Raza discului este...
Multumesc!:*

Answer 1

$\pi R^{2}=256 \pi \\ R^{2} =256 \\ R=16$

Answer 2

A disc=$\pi$ |R²= 256$\pi$ cm²
|R=$\sqrt{256}$
|R=16 cm²