Question

ajuda urgeeeente por favooooor

Answer 1

a)8,5x5=40
b)3,5x3,5=12.25
c)54.26=1.404
d)12,7=84/2=42
e)6x3,5=21

espero ter ajudado ^^

Answer 2

a) $S=\text{comprimento}\times\text{Largura}$

$S=8\times5=40~\text{m}^2$.


b) $S=\text{lado}^2$

$S=(3,5)^2=12,25~\text{m}^2$


c) $S=\text{comprimento}\times\text{largura}$

$S=54\times26=1~404~\text{m}^2$


d) $S=\dfrac{\text{base}\times\text{altura}}{2}$

$S=\dfrac{12\times7}{2}=\dfrac{84}{2}=42~\text{m}^2$.


e) $S=\text{comprimento}\times\text{altura}$

$S=6\times3,5=21~\text{m}^2$