anonymous
  • anonymous
Isosceles triangle ABC is inscribed in square BCDE as shown. If the area of BCDE is 4, the perimeter of ABC is ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
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anonymous
  • anonymous
You need an auxiliary line from point A to the midpoint of BC. That will form two congruent right triangles with legs of length one and two. That means AC and AB are sqrt 5 in length, and the perimeter of ABC is 2 + 2 sqrt 5.

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