Mathematics

Which of the following is true for the given figure:

Which of the following is not true for the given figure : Triangles, Concise Mathematics Solutions ICSE Class 9.
  1. ΔAPC ≅ ΔBPD

  2. CP = DP

  3. AB and CD bisect each other

  4. all of the above are true.

Triangles

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Answer

In ΔAPC and ΔBPD,

⇒ ∠ACP = ∠BDP (Both are 90°)

⇒ ∠APC = ∠BPD (Vertically opposite angles are equal)

⇒ AC = BD (Given)

∴ ΔAPC ≅ ΔBPD (By AAS congruency criterion)

By C.P.C.T.,

⇒ CP = DP and AP = BP

Thus, AB and CD bisect each other.

∴ All the options are correct.

Hence, option 4 is the correct option.

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