Question

Determine a área das figuras abaixo ​

Answer 1

Explicação passo-a-passo:

a) $S=b\cdot h$

$S=20\cdot3$

$S=60~\text{m}^2$

b) $S=l^2$

$S=5^2$

$S=25~\text{cm}^2$

c) $S=\dfrac{(B+b)\cdot h}{2}$

$S=\dfrac{(8+6)\cdot9}{2}$

$S=\dfrac{14\cdot9}{2}$

$S=\dfrac{126}{2}$

$S=63~\text{u}.\text{a}.$

d) $S=\dfrac{(B+b)\cdot h}{2}$

$S=\dfrac{(15+5)\cdot8}{2}$

$S=\dfrac{20\cdot8}{2}$

$S=\dfrac{160}{2}$

$S=80~\text{u}.\text{a}.$