ICSE Class 10 Similarity of Triangles — Mock Test (2027)
Free online mock test for Similarity of Triangles (ICSE Class 10 Mathematics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Similarity of Triangles chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.In the given figure, $P$ and $Q$ are points on the sides $AB$ and $AC$ respectively of a triangle $ABC$. $PQ$ is parallel to $BC$ and divides the triangle $ABC$ into 2 parts, equal in area. What is the ratio of $AP:AB$?

- a.$2:1$
- b.$1:\sqrt{2}$
- c.$\sqrt{2}:1$
- d.$1:2$
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2.In the given figure, $XY \parallel OR$. If $PX : XQ = 1 : 2$ and $PY = 4$ cm, then $PR$ is equal to:
- A.$12 \mathrm{~cm}$
- B.$2\sqrt{3} \mathrm{~cm}$
- C.$6\sqrt{3} \mathrm{~cm}$
- D.$18 \mathrm{~cm}$
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3.A model of a ship is made to a scale of 1:200. If the length of the model is 4 m; calculate the length of the ship.
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4.Assertion (A): The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. Reason (R): If two triangles are similar, their corresponding sides are proportional.
- A.Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- B.Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- C.Assertion (A) is true but reason (R) is false.
- D.Assertion (A) is false but reason (R) is true.
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5.In the given figure, `
` BC is parallel to DE. Area of triangle ABC = 25 cm², Area of trapezium BCED = 24 cm² and DE = 14 cm. Which labelled segment corresponds to the side BC whose length is 5 cm?- A.The shorter base of trapezium BCED, labelled BC in the figure.
- B.The longer base of trapezium BCED, labelled DE in the figure.
- C.The non-parallel side BD of trapezium BCED.
- D.The side AB of triangle ABC, adjacent to BC.
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