ICSE Class 9 Answered
Please solve the questions 15 ;16 and 17
Asked by 529312137492813 | 19 Sep, 2018, 05:42: PM
Expert Answer
15.
Solution:
Given:
Points E and F are the mid-point of the chords AB and CD respectively.
Line EF passes through centre.
To prove:
AB || CD
Proof:
OEA = OFC = 900.....(1) ...since line drawn through the centre to bisect the chord is perpendicular to the chord.
Here, EF is a transversal for cords AB and CD.
From(1)
AB || CD .........(converse of alternate interior angle )
Answered by Yasmeen Khan | 19 Sep, 2018, 06:32: PM
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