Question

respostas por favor​

Answer 1

$1) \: perimetro = 4 \times 8 = 32cm \\ 2)5 + 5 + 3 + 3 = 16cm \\ 3)24 + 24 + 12 + 12 = 72cm \\ 4) \: 4(4 \times 45) = 720 m$

$6a) {20}^{2} + {x}^{2} = {25}^{2} \\ {x}^{2} = 225 \\ x = 15cm \\ \\ 6b) h = 4000m$

$5)42 + 42 + 24 + 24 = 132 \\ 132 \div 1.5 = 88 \: pes$