Practice Properties of Triangles - 4.7 | 4. Geometry | ICSE Class 9 Maths
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the angle sum of a triangle?

💡 Hint: Think about the angles you observe in everyday triangles.

Question 2

Easy

State the Exterior Angle Theorem.

💡 Hint: Reflect on what happens when a side of a triangle is extended.

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 all interior angles in a triangle?

  • 90°
  • 180°
  • 360°

💡 Hint: Consider the definition of angles in relation to a straight line.

Question 2

True or False: The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

  • True
  • False

💡 Hint: Think about how you can measure and create a triangle with given sides.

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Challenge Problems

Push your limits with challenges.

Question 1

Given the angles of triangle QRS are Q = 50°, R = 80°. What is angle S? If S is less than 50°, does this triangle exist?

💡 Hint: Always verify the sum of angles to ensure they adhere to the angle sum property.

Question 2

If the lengths of sides of a triangle are 7, 24, and 25, verify if they satisfy the triangle inequality theorem.

💡 Hint: Apply the triangle inequality theorem to each pair of sides.

Challenge and get performance evaluation