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Triangle ABC has a perimeter of 48 cm, and D, E, F are the mid-points of BC, CA, AB. What is the perimeter of the medial triangle DEF?

Class 9The Mid-point TheoremGeometry — Quadrilaterals
  • A26
  • B24
  • C22
  • D48

Step-by-Step Solution

Each side of DEF is half its parallel side, so its perimeter is half of 48 = 24 cm.
Answer: B) 24

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