Question

1) O número 325 trilhões em notação científica é:

a) 3,25 . 10¹²

b) 3,25 . 10¹³

c) 3,25 . 10¹⁴

d) 3,25 . 10¹⁵

2) O perímetro de um quadrado mede 12cm. Qual a medida de sua diagonal?

a)
$12 \sqrt{2}$
b)
$2 \sqrt{2}$
c)
$2 \sqrt{18}$
d)
$2 \sqrt{3}$
​

Answer 1

$\Large\boxed{\begin{array}{l}\rm 1)\\\sf 325\,000\,000\,000\,000=3,25\cdot10^{14}\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~c}}}}\end{array}}$

$\Large\boxed{\begin{array}{l}\rm 2)\\\sf p=4\cdot \ell\\\sf 4\cdot \ell=12\\\sf \ell=\dfrac{12}{4}\\\\\sf\ell=3\,cm\\\sf d=\ell\sqrt{2}\\\sf d=3\sqrt{2}\,cm\\\sf o\,gabarito\,desta\,quest\tilde ao\,est\acute a\,incorreto.\end{array}}$