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: If the angles subtended by the chords of a circle at the CentreTheoremre equal then the chords are equal. |
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Answer» Let AB and CD be the chords of a circle with centre 0where angle AOB= angle CODTo prove:AB equal toCDProof: in triangle AOB and triangle COD,we haveOA = OC (radii of a circle) angle AOB = angleCOD OB = OD(radii of a circle)therefore triangle AOB congruent to triangleCOD(by SAS rule)therefore AB = CD (by cpct) hit like if you find it useful |
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