Question

Qual é a raiz quadrada de 81​

Answer 1

Resposta:

$9.1= 9\\9.2 =18\\9.3 =27\\9.4 =36\\9.5 =45\\9.6 =54\\9.7 =63\\9.8 =72\\9.9 =81\\9.10 = 90$

$\sqrt{81}=\\9\\9x9= 81\\9*9= 81\\9.9= 81$

Answer 2

Resposta:

$\textsf{Segue a resposta abaixo}$

Explicação passo-a-passo:

$\begin{array}{c|c}\sf81&\sf3\\\sf27&\sf3\\\sf9&\sf3\\\sf3&\sf3\\\sf1\end{array}$

$\mathsf{\sqrt{81}=\sqrt{3^2\cdot3^2} }$

$\mathsf{\sqrt{81}=3\cdot3 }$

$\boxed{\boxed{ \mathsf{ \sqrt{81}=9}}}$