NCERT Solutions for Class 9 Maths<\/a> Chapter 10 Circles Ex 10.2 Questions and Answers are prepared by our highly skilled subject experts.<\/p>\nNCERT Solutions for Class 9 Maths Chapter 10 Circles Exercise 10.2<\/h2>\n Question 1. \nRecall that two circles are congruent if they have the same radii. Prove that equal chords of congruent circles subtend equal angles at their centres. \nSolution: \nGiven: C1<\/sub> and C2<\/sub> are two congruent circles whose centres are O and P respectively. \nChord AB of circle C1<\/sub> is equal to the die chord QR of circle C2<\/sub>. \n \nTo prove that \u2220O = \u2220P \nProof: In \u2206OAB and \u2206PQR. \nOA = PQ (Radii of the congruent circle) \nOB = PR (Radii of congruent circle) \nAB = QR (Given) \nBy S-S-S- congruency condition, \n\u2206OAB \u2245 \u2206PQR \n\u2234 \u2220O = \u2220P (By CPCT)<\/p>\n <\/p>\n
Question 2. \nProve that if chords of congruent circles subtend equal angles at their centres, then the chords are equal. \nSolution: \nGiven: C1<\/sub> and C2<\/sub> are two congruent circles whose centres are O and O’ respectively and \u2220AOB = \u2220PO’Q. \nTo prove that: AB = PQ \n \nProof: In \u2206OAB and \u2206O’PQ \nOA = O’P (Radii of congruent circles) \nOB = O’Q (Radii of congruent circles) \nand \u2220AOB = \u2220PO’Q (Given) \nBy S-A-S congruency condition. \n\u2220OAB = \u2220O’PQ \n\u2234 AB = PQ (By CPCT)<\/p>\n","protected":false},"excerpt":{"rendered":"These NCERT Solutions for Class 9 Maths Chapter 10 Circles Ex 10.2 Questions and Answers are prepared by our highly skilled subject experts. NCERT Solutions for Class 9 Maths Chapter 10 Circles Exercise 10.2 Question 1. Recall that two circles are congruent if they have the same radii. Prove that equal chords of congruent circles …<\/p>\n
NCERT Solutions for Class 9 Maths Chapter 10 Circles Ex 10.2<\/span> Read More »<\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","spay_email":""},"categories":[6],"tags":[],"yoast_head":"\nNCERT Solutions for Class 9 Maths Chapter 10 Circles Ex 10.2 - MCQ Questions<\/title>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\t \n\t \n\t \n