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Class IX Circles Chapter – 10 EXEMPLAR Exercise – 10.3 Q11: If a line is drawn parallel to the base of an isosceles triangle to intersect its equal sides, prove that the quadrilateral so formed is cyclic. Previous Videos related to this chapter are mentioned in the below link: Theorem-10.1_ • THEOREM-10.1 Equal chords of a circle sub... Theorem-10.2_ • If the angles subtended by the chords of a... Theorem-10.3_ • THEOREM-10.3 The perpendicular from the ce... Theorem-10.4_ • The line drawn through the centre of a cir... Theorem-10.6_ • Equal chords of a circle (or of congruent ... Theorem-10.7_ • THEOREM-10.7 Chords equidistant from the ... Theorem-10.8_ • The angle subtended by an arc at the centr... Theorem-10.9_ • THEOREM-10.9 Angles in the same segment of... Example-1_ • Example-1 Given an arc of a circle, comple... Ex-10.2_Q1_ • Recall that two circles are congruent if t... Ex-10.4_Q1_ • Two circles of radii 5 cm and 3 cm interse... Ex-10.4_Q2_ • If two equal chords of a circle intersect ... Ex-10.4_Q4_ • If a line intersects two concentric circle... Ex-10.5_Q1_ • In Fig. 10.36, A,B and C are three points ... Ex-10.5_Q3_ • Q3. In Fig. 10.37, ∠ PQR = 100°, where P, ... Ex-10.5_Q4_ • Q4. In Fig. 10.38, ∠ ABC = 69°, ∠ ACB = 31... Ex-10.5_Q6_ • ABCD is a cyclic quadrilateral whose diago... EX – 10.3 Q1 • If arcs AXB and CYD of a circle are congru... EX – 10.3 Q2 • If the perpendicular bisector of a chord A... EX – 10.3 Q3 • A, B and C are three points on a circle. P... EX – 10.3 Q4 • AB and AC are two equal chords of a circle... EX – 10.3 Q5 • If a line segment joining mid-points of tw... EX - 10.3 Q6 • ABCD is such a quadrilateral that A is the... EX - 10.3 Q7 • O is the circumcentre of the triangle ABC ... EX – 10.3 Q9 • Two chords AB and AC of a circle subtends ... Ex - 10.3 Q10 • If BM and CN are the perpendiculars drawn ... #cbse #icse #boards #8th #9th #10th #foundation #competition #iit #jee #Advanced #mains #ntse #olympiads #exams #examination #achiever #topper #zenith #zenithinstituteofmathematics #indersir #ludhiana #modelgram #bestmathscoaching #besttutorials #besttuition #bestinludhiana #mathtricks #viii #ix #x #xi #xii #important #excellent #question #circlesclass9 #semicircle #concyclic #diagonals #centre #radius #circularregion #diameter #chord #majorarc #minorarc #circumference #sector #majorsegment #minorsegment #interior #exterior