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Aianyxx
25.07.2020 •
Mathematics
Halle en metros cuadrados la cantidad de cartón necesaria para elaborar el sólido que se muestra:: POR FIS ES DE UNA EVALUACION ALGUIEN QUE ME AYUDEEE:).
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Ответ:
La cantidad de cartón necesaria para hacer el sólido es de 165 m² de cartón.
Step-by-step explanation:
La figura en la pregunta consta de tres formas
1) Una pirámide cuadrada
Altura inclinada = 5 m
Longitud lateral base = 3 m
2) un cubo
Longitud lateral, s = 3 m
3) Un prisma rectangular
Longitud = 6 m
Altura = 3 m
Ancho = 3 m
El área de superficie de la pirámide cuadrada,
= 2 × Altura inclinada × Longitud del lado base
El área de superficie del cubo,
= 6 ×(Longitud lateral, s)²
El área de superficie del prisma rectangular,
= 4 × largo × alto + ancho × alto
La cantidad de cartón necesaria para hacer el sólido,
=
+
+ ![S_R](/tpl/images/0712/9798/08df4.png)
La superficie del cartón necesaria para construir el sólido es de 165 m².
Ответ:
f = -![\frac{12}{11}](/tpl/images/1409/2891/542eb.png)
Step-by-step explanation:
Given
- 5f - 8 = 2(3f + 2) ← distribute parenthesis
- 5f - 8 = 6f + 4 ( subtract 6f from both sides )
- 11f - 8 = 4 ( add 8 to both sides )
- 11f = 12 ( divide both sides by - 11 )
f =
= - ![\frac{12}{11}](/tpl/images/1409/2891/542eb.png)