Congruency Congruent Triangles
ICSE · Class 7 · Mathematics
Most important questions from Congruency Congruent Triangles for ICSE Class 7 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.
Interactive on Super Tutor
Studying Congruency Congruent Triangles? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
1,000+ Class 7 students started this chapter today
Sample Questions
Triangles AOB and DOC have AB = CD = 12 cm and AB // CD. If ∠BAO = 35° and ∠CDO = 35°, which side equality can be concluded after proving the triangles congruent by ASA?
Show answer
AO = DO
With AB = CD and the alternate angles equal because AB is parallel to CD, the triangles are congruent by ASA. Corresponding sides of congruent triangles are equal, so AO = DO.
In triangles AOB and AOC, AB = AC = 13 cm, AO is common, and ∠BOA = ∠COA = 90°. What is the correct congruency result?
Show answer
ΔAOB ≅ ΔAOC by RHS
Both triangles are right-angled, the hypotenuse AB equals AC, and AO is a common side. That fits RHS, so the triangles are congruent by RHS.
A triangle has angles 20° and 50°. What is the third angle using the angle-sum property?
Show answer
110°
The angles of a triangle add to 180°. So the third angle = 180° - (20° + 50°) = 180° - 70° = 110°.
A triangle has angles 110° and 20°. What is the third angle?
Show answer
50°
The three angles of a triangle add to 180°. So the third angle = 180° - (110° + 20°) = 50°.
+54 more questions available
Practice AllFrequently Asked Questions
What are the important topics in Congruency Congruent Triangles for ICSE Class 7 Mathematics?
How to score full marks in Congruency Congruent Triangles — ICSE Class 7 Mathematics?
How many important questions are there in Congruency Congruent Triangles?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Congruency Congruent Triangles
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect visually
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Congruency Congruent Triangles chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for ICSE Class 7 Mathematics.