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Part ACSIR NET September 2022midline-theorem

Midline theorem

Consider a right angled triangle BAC, right angled at A, with medians CM and BL having the same length, where M is the midpoint of AB and L is the midpoint of AC. The ratio of the length of BC to that of ML is

  1. A.2✓ Correct
  2. B.3/4
  3. C.4/3
  4. D.1

You have the answer. Trap Analysis is why the other three were written.

Not a worked solution repeated four times — the specific reasoning error each wrong option was built to reward, and why this one tests execution slip.

See pricing

50 are analysed free — try those first.

The trap it tests

Execution slip

The idea was right. The computation was not.

Drill statements like this

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