Question

qual a raiz quadrada de 102​

Answer 1

$\mathsf{F\acute ormula:~\sqrt n\approxeq\dfrac{n+Q}{2\sqrt Q}}$

$\mathsf{ \sqrt{102}\approxeq\dfrac{ 102+100}{2\sqrt{100}}=\dfrac{202}{2\cdot10}}$

$\boxed{\boxed{\mathsf{\sqrt{102}\approxeq\dfrac{202}{20}= 10{,}1 }}}$