Triangles

CBSE Class 10 · Mathematics · 29 past questions

These are the board's own papers. 164 more board questions reprinted in the books we use in class are for signed-in students: sign in.

10 of 29 · show all

Q1 2026

In $\triangle$ DEF, AB $\parallel$ EF. The value of x is… (with a figure)
Q2 2026

It is given that $\Delta$ ABC $\sim$ $\Delta$ QRP such that AB = 9 cm, BC = 5 cm and PR = 2 cm. Length of…
Q3 2026

Devansh proved that ΔABC ~ ΔPQR using SAS similarity criteria. If he found ∠C = ∠R, then which of the…
Q4 2026

In the given figure, PQ $\parallel$ YZ such that XP : PY = 2 : 3. If PQ = 5 cm, then YZ equals (with a figure)
Q5 2026

It is given that $\triangle ABC \sim \triangle EDF$. Which of the following is not true ?
Q6 2026 (Basic)

In the given figure, PQ $||$ BC. If AP : AB = 3 : 7 then, AQ : QC equals… (with a figure)
Q7 2026 (Basic)

In the given figure, QR || CB and RP || AC. If BR = 10 cm, QA = 12 cm, BP = 12 cm and PC = 18 cm, then find… (with a figure)
Q8 Sample paper 2026-27

The perimeters of two similar triangles are 56 cm and 70 cm respectively. If one side of the first triangle…
Q9 Sample paper 2026-27

ABCD is a trapezium in which AB is parallel to DC and its diagonals intersect each other at the point O. Show…
Q10 Sample paper 2026-27

Prove that a line drawn parallel to one side of a triangle to intersect the other two sides in distinct…