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san4es73 [151]
2 years ago
15

Find the height of a triangle with base 3 m and area 9 m². a m

Mathematics
2 answers:
alina1380 [7]2 years ago
4 0

Answer:

The Height = 6

Step-by-step explanation:

Triangle formula bxh/2

3x6/2=9

miss Akunina [59]2 years ago
3 0

Answer:

h=6

Step-by-step explanation:

a=b x h x 0.5

9=3 x h x 0.5

9/3=3/.5=6

h=6

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Una persona asegura que su casa tiene forma rectangular y que el perímetro de la misma es de 18 m y que además, su área es de 21
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Considerando las fórmulas para el perímetro y el área de un rectángulo, hay que se chega en una <u>eccuación cuadrática sin solución</u>, o sea, las medidas no son posibles y la persona estaba mintiendo.

<h3>¿Cuál es la fórmula para el perímetro y el área de un rectángulo?</h3>

Considerando que las dimensiones son l y w, hay que:

  • El perímetro es: P = 2(l + w).
  • El área es: A = lw.

El <u>perímetro es de 18 m</u>, o sea:

2(l + w) = 18

l + w = 9

l = 9- w.

El <u>área es de 21 m²</u>, o sea:

lw = 21

(9- w)w = 21

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w² - 9w + 21 = 0

El discriminante es dado por:

D = 9² - 4 x 1 x 21 = -3.

El discriminante negativo implica que la <u>eccuación cuadrática no tiene solución</u>, o sea, las medidas no son posibles y la persona estaba mintiendo.

Puede-se aprender más a cerca de el perímetro y el área de un rectángulo en brainly.com/question/26475963

#SPJ1

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1 year ago
2 ( t-3) &gt; 2t-8, what is the correct answer
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8 0
2 years ago
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