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Answer :

Solution:

Note that:

  • Area of triangle: 1/2 x Base x Altitude
  • Perimeter of triangle: Sum of its side

Finding the area of triangle:

  • 1/2 x 12 x 5
  • => 6 x 5
  • => 30 cm²

Finding the perimeter of triangle:

  • 8 + 8 + 12
  • => 16 + 12
  • => 28 cm

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