Practice Sum of Angles - 3.1 | 1. Properties of Triangles | (IB) Class 10 Mathematics – Group 5, Geometry & Trigonometry
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.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the sum of the interior angles of a triangle?

💡 Hint: Think about the properties of triangles!

Question 2

Easy

If two angles in a triangle are 30° and 60°, what is the third angle?

💡 Hint: Use the angle sum property!

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

What is the sum of the angles in a triangle?

  • 90 degrees
  • 180 degrees
  • 360 degrees

💡 Hint: Recall the triangle angle sum property.

Question 2

True or False: An exterior angle is greater than either of the two opposite interior angles.

  • True
  • False

💡 Hint: Think about the relationships between the angles.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given triangle DEF, angle D = 75°, angle E = 30°. Calculate angle F and verify using the exterior angle theorem by extending side DE.

💡 Hint: Use the angle sum property to find angle F first.

Question 2

In triangle GHI, if angle G is increased to 90° while maintaining triangle properties, what effect does this have on angles H and I? Provide analysis.

💡 Hint: Reflect on how the angles interact in maintaining the sum of 180°.

Challenge and get performance evaluation