Respuesta :

mhanifa

Answer:

  • See below

Step-by-step explanation:

The scale factor is:

  • k = 2/192 = 1/96

The scaled dimensions are:

  • l = 8.125 cm
  • w = 5 cm

1. The actual length is:

  • l / k = 8.125 / (1/96) = 8.125*96 = 780 cm

2. l is actually is a height of the triangle.

Find b, which is a w = 5 cm scaled:

  • b/k = 5*96 = 480 cm

Find the area:

  • A = 1/2*780*480 = 187200 cm²

Convert the area into m², considering that:

  • 1 m = 100 cm ⇒ 1 cm = 1/100 m ⇒ 1 cm² = 1/100² m² = 1/10000 m²
  • A = 187200*1/10000 m² = 18.72 m²

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