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Congruent triangles: Edexcel GCSE Maths questions

Every Edexcel GCSE Maths exam question on G5 Congruent triangles, 2017–2025, with its mark scheme and examiner’s report.

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  1. Q18

    November 2024 · Paper 2H

    3 marksG6 Geometric proofG5 Congruent triangles
    The whole paper ↗
    November 2024 Paper 2H, question 18: A, B and C are three points on a circle, centre O. A B O C BA = BC Prove that OB bisects angle ABC.

  2. Q20

    November 2022 · Paper 3H

    3 marksG5 Congruent trianglesG6 Geometric proof
    The whole paper ↗
    November 2022 Paper 3H, question 20: The diagram shows a triangle ADE. A B C D E AE = DE AB : BC : CD = 1 : 2 : 1 Prove that triangle ACE is congruent to triangle DBE.

  3. Q4

    November 2020 · Paper 1H

    1 markG5 Congruent triangles
    The whole paper ↗
    November 2020 Paper 1H, question 4: The diagram shows four triangles. 10 cm 45° 45° 55° 8 cm 10 cm Triangle A Triangle B 45° 55° 8 cm 10 cm 80° 10 cm Triangle C Triangle D Two of these triangles a

  4. Q22

    November 2019 · Paper 1H

    4 marksG6 Geometric proofG5 Congruent triangles
    The whole paper ↗
    November 2019 Paper 1H, question 22: A, B, C and D are four points on a circle. A D B E C AEC and DEB are straight lines. Triangle AED is an equilateral triangle. Prove that triangle ABC is congrue

  5. Q21

    June 2018 · Paper 3H

    5 marksG5 Congruent trianglesG6 Geometric proof
    The whole paper ↗
    June 2018 Paper 3H, question 21: A B P Q D C ABCD is a parallelogram. ABP and QDC are straight lines. Angle ADP = angle CBQ = 90q (a) Prove that triangle ADP is congruent to triangle CBQ. (b) E

  6. Q21

    June 2017 · Paper 1H

    4 marksG6 Geometric proofG5 Congruent triangles
    The whole paper ↗
    June 2017 Paper 1H, question 21: ABCD is a quadrilateral. B C A D AB = CD. Angle ABC = angle BCD. Prove that AC = BD.
All 6 questions on Congruent triangles, as a list
  1. November 2024, Paper 2H, Q18 (3 marks): A, B and C are three points on a circle, centre O. A B O C BA = BC Prove that OB bisects angle ABC.
  2. November 2022, Paper 3H, Q20 (3 marks): The diagram shows a triangle ADE. A B C D E AE = DE AB : BC : CD = 1 : 2 : 1 Prove that triangle ACE is congruent to triangle DBE.
  3. November 2020, Paper 1H, Q4 (1 mark): The diagram shows four triangles. 10 cm 45° 45° 55° 8 cm 10 cm Triangle A Triangle B 45° 55° 8 cm 10 cm 80° 10 cm Triangle C Triangle D Two of these triangles a
  4. November 2019, Paper 1H, Q22 (4 marks): A, B, C and D are four points on a circle. A D B E C AEC and DEB are straight lines. Triangle AED is an equilateral triangle. Prove that triangle ABC is congrue
  5. June 2018, Paper 3H, Q21 (5 marks): A B P Q D C ABCD is a parallelogram. ABP and QDC are straight lines. Angle ADP = angle CBQ = 90q (a) Prove that triangle ADP is congruent to triangle CBQ. (b) E
  6. June 2017, Paper 1H, Q21 (4 marks): ABCD is a quadrilateral. B C A D AB = CD. Angle ABC = angle BCD. Prove that AC = BD.

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