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Daily Problem·Monday, 4 August 2025Back to today

Use congruence to find a length

GCSE · Mathematics · Edexcel · G5Triangle congruence: SSS, SAS, ASA, RHS

Question

Edexcel Paper 2H — Higher

In triangle ABC, AB = AC and AD is the perpendicular from A to BC.

(a) Prove that △ABD ≡ △ACD. (3 marks) (b) Hence show that BD = CD. (2 marks)

5 marks · take your time before peeking.

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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.