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Help please. I will give the brainilest
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Help please. I will give the brainilest

Help please. I will give the brainilest-example-1
User Lonimor
by
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1 Answer

7 votes

Answer:

  • 31 units

Explanation:

Note: 3x + 8 is incorrect as leads to negative value for the length. Therefore changed to 3x - 8

------------------------------------------------

  • DE is midsegment
  • Midsegment = 1/2 Base as per definition, DE = 1/2AC

Substitute values

  • 3x - 8 = 1/2(4x + 10)
  • 3x - 8 = 2x + 5
  • 3x - 2x = 5 + 8
  • x = 13

DE = 3*13 - 8 = 31

User Patrick Manser
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