Question

encuentra el perímetro del siguiente terreno en metros​

Answer 1

Explicación paso a paso:

$a) \: \frac{3000cm \times 1m}{100cm} = 30m$

$b) \: \frac{900cm \times 1m}{100cm} = 9m$

$c) \: a - b = 30m - 9m = 21m$

$d) {h}^{2} = {(a - (b + c)) }^{2} + {(45 - 30)}^{2} \\ {h}^{2} = {(30 - (9 + 21)}^{2} + {(45 - 31)}^{2} \\ {h}^{2} = {(30 - 30)}^{2} + {(45 - 30)}^{2} \\ {h }^{2} = {0}^{2} + {15}^{2} \\ {h}^{2} = 0 + 225 \\ {h}^{2} = 225 \\ \sqrt{ {h}^{2} } = \sqrt{225} \\ h = 15m$

perimetro:

$a + b + c + d + 45m + 30m \\ = 30m + 9m + 21m + 15m + 45m + 30m \\ = 150m$