Practice Basic Terms and Definitions - 6.2 | 6. Lines And Angles | CBSE 9 Mathematics
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Basic Terms and Definitions

6.2 - Basic Terms and Definitions

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

Question 1 Easy

Define a line segment.

💡 Hint: Think about a drawing connecting two points.

Question 2 Easy

What type of angle measures exactly 90°?

💡 Hint: Remember the square corners!

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the measures of an obtuse angle?

Less than 90°
Exactly 90°
Greater than 90° but less than 180°
180°

💡 Hint: Think of the largest angle you've drawn.

Question 2

True or False: Adjacent angles have a common arm and vertex.

True
False

💡 Hint: Remember how they are positioned next to each other.

Get performance evaluation

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Prove that if two angles are complementary and one angle measures 40°, what is the measure of the other angle?

💡 Hint: Use the definition of complementary angles.

Challenge 2 Hard

Given two intersecting lines forming angles A, B, C, and D, with A and C being vertically opposite, how would you prove A = C?

💡 Hint: Refer to the intersection of lines and the angle relationships discussed.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.