Case study Questions on Class 9 Mathematics Chapter 8 are very important to solve for your exam. Class 9 Maths Chapter 8 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 Chapter 8 Quadrilaterals

Case Study/Passage Based Questions

Laveena’s class teacher gave students some colourful papers in the shape of quadrilaterals. She asked students to make a parallelogram from it using paper folding. Laveena made the following parallelogram.

How can a parallelogram be formed by using paper folding?
(a) Joining the sides of quadrilateral
(b) Joining the mid-points of sides of quadrilateral
(d) None of these

Which of the following is true?
(a) PQ = BD (b) PQ = 1/2 BD
(c) 3PQ = BD (d) PQ = 2BD

Answer: (b) PQ = 1/2 BD

Which of the following is correct combination?
(a) 2RS = BD (b) RS = 1/3 BD
(c) RS = BD (d) RS = 2BD

Which of the following is correct?
(a) SR = 2PQ (b) PQ = SR
(c) SR = 3PQ (d) SR = 4PQ

Case Study/Passage Based Questions

Anjali and Meena were trying to prove mid point theorem. They draw a triangle ABC, where D and E are found to be the midpoints of AB and AC respectively. DE was joined and extended to F such that DE = EF and FC is also joined.

▲ADE and ▲CFE are congruent by which criterion?
(a) SSS (b) SAS (c) RHS (d) ASA

∠EFC is equal to which angle?
(a) ∠DAE (b) ∠EDA (c) ∠AED (d) ∠DBC

∠ECF is equal to which angle?

CF is equal to
(a) EC (b) BE (c) BC (d) AD

CF is parallel to
(a) AE (b) CE (c) BD (d) AC

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