Practice TRIANGLES - 7 | 7. Triangles | CBSE 9 Mathematics | Allrounder.ai
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

7 - TRIANGLES

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are the three types of angles found in triangles?

💡 Hint: Think about the various measures of angles.

Question 2

Easy

What does the acronym SAS stand for in triangle congruence?

💡 Hint: Consider the arrangement of two sides and an angle.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

How many sides does a triangle have?

  • 2
  • 3
  • 4

💡 Hint: Recall the basic definition of a triangle.

Question 2

Two triangles are congruent if which of the following is true?

  • True
  • False

💡 Hint: Consider what congruence means in terms of geometry.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Two triangles have the angles of 30°, 60°, and 90°. If the sides opposite to the 60° angle are known, can you prove the triangles are congruent using any congruence criteria?

💡 Hint: Think about what makes those angles reliable.

Question 2

Given triangle ABC is isosceles with angle A equal to 40°, what are the angles B and C?

💡 Hint: Consider the total 180° angle sum.

Challenge and get performance evaluation