## Class 9 Maths Case Study Questions of Chapter 10 Circles PDF Download

Case study Questions in Class 9 Mathematics Chapter 10 are very important to solve for your exam. Class 9 Maths Chapter 10 Case Study Questions have been prepared for the latest exam pattern. You can check your knowledge by solving case study-based questions for Class 9 Maths Case Study Questions Chapter 10 Circles

These case study questions challenge students to apply their knowledge of quadrilaterals in practical scenarios, enhancing their problem-solving abilities. This article provides the Class 9 Maths Case Study Questions of Chapter 10 Circles, enabling students to practice and excel in their examinations.

# Circles Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 9 Maths Chapter 10 Circles

Case Study/Passage-Based Questions

Case Study 2:Three friends Amit, Mayank, and Richa were playing with the ball by standing in a circle at A, B, and C points respectively. Richa throws a ball to Amit, Amit to Mayank, and Mayank to Richa. They all are equidistant from each other as shown in the figure.

Considering O as the centere of the circle, answer the following questions

Which type of ▲ABC is given in figure?
(a) Right angled triangle
(b) Equilateral triangle
(c) Isosceles triangle
(d) Scalene triangle

Measure of ∠ABC is
(a) 45° (b) 60°
(c) 30° (d) 90°

If AB = 6 cm, then BC + CA is equal to
(a) 12 cm (b) 14 cm
(c) 15 cm (d) 18 cm

Measure of ∠BOC is
(a) 90° (b) 100° (c) 120° (d) 150°

Value of ∠OBC + ∠OCB is
(a) 30° (b) 45° (c) 90° (d) 60°

Case Study/Passage-Based Questions

Case Study 2: Rohan is a class 9th student. He did not attend school as his health is not fine for a few days. At home, he opens his Maths textbook and observes chapter circles. He was so much curious to know about the properties of circles. His father Mr. Raman, who is also a good Mathematician helps Rohan to understand all properties one by one. At last, he asks some questions to Rohan for quick revision. Help Rohan to answer the following questions.

A circle can circumscribe a
(a) Rectangle (b) Trapezium
(c) Triangle (d) All of these

The perpendicular distance from the centre of the circle decreases when
(a) the length of the chord increases
(b) the length of the chord decreases
(c) Radius of circle is decreased
(d) Radius of circle is increased

Answer: (a) the length of the chord increases

The number of radii that can be drawn in a circle is
(a) 10 (b) 100 (c) 1000 (d) infinite

The distance from the centre of the circle to the longest chord is equal to
(a) 22/7 units (b) 0 unit
(c) 1 unit (d) 3 units