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Sep 12, 2020 · Find extra questions for class 9 maths chapter 10 circles with answers and solutions. Learn how to solve problems on angles, chords, tangents, segments and secants of circles.
- Bisectors of angles A, B and C of a triangle ABC intersect its circumcircle at D, E and F respectively. Prove that the angles of the triangle DEF are 90° – (½)A, 90° – (½)B and 90° – (½)C.
- In any triangle ABC, if the angle bisector of ∠A and perpendicular bisector of BC intersect, prove that they intersect on the circumcircle of the triangle ABC.
- Prove that the circle drawn with any side of a rhombus as diameter passes through the point of intersection of its diagonals. Solution: To prove: A circle drawn with Q as centre, will pass through A, B and O (i.e.
- Two chords AB and CD of lengths 5 cm and 11 cm respectively of a circle are parallel to each other and are on opposite sides of its centre.
Aug 18, 2019 · Here is the list of Extra Questions for Class 9 Maths with Answers based on latest NCERT syllabus prescribed by CBSE. Chapter 1 Number Systems Class 9 Extra Questions. Chapter 2 Polynomials Class 9 Extra Questions. Chapter 3 Coordinate Geometry Class 9 Extra Questions.
- Every diameter of a circle is also a chord. Is the converse of this statement also true? Answer: Every diameter is a chord because its end points lie on the circumference of the circle.
- State difference between sector and segment of a circle. Answer: A sector is the region between an arc and the two radii, joining the centre to the end points of the arc whereas a segment is the region between a chord of a circle and its associated arc.
- In the following figure, find the value of ∠ COD if ∠ AOB = 75 and AB = CD. Answer: ∠ COD = 75. Because equal chords of a circle subtend equal angles at the centre.
- For a quadrilateral to become cyclic quadrilateral, sum of a pair of its opposite angles must be equal to ________. Answer: For a quadrilateral to become cyclic quadrilateral, sum of a pair of its opposite angles must be equal to 180.
Chapter 9 Circles Class 9 Extra Questions free PDF Download based on latest pattern with solutions and boost your preparation with the help of important questions.
askIITians provides a plethora of learning resources for Class 9 Maths Chapter 10 Circles including sample papers, previous year questions, NCERT solutions, extra questions, revision notes, flashcards and more.
Chapter-wise NCERT Solutions for Class 9 Maths Chapter 10 Circles solved by Expert Teachers as per NCERT (CBSE) Book guidelines. CBSE Class 9 Maths Chapter 10 Circles Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks.
