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student3674

Pls help

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  • eric
    2020-11-22 02:46:08
    Let D be a point on BH such that both AB and CB is greater than DH .
  • eric
    2020-11-22 02:49:34
    Correction: Let D be a point on BH such that both AB and CB is greater than BD.
    •  eric 2020-11-22 02:46:08
    • Let D be a point on BH such that both AB and CB is greater than DH .
  • eric
    2020-11-22 02:51:16
    Then let O be the midpoint of BD and take it as the centre of the circle.
  • eric
    2020-11-22 02:54:18
    It's clear now the circle cuts both AB and CD at 2 points, say P,Q and R,S respectively.
  • eric
    2020-11-22 02:57:08
    Actually P=R=B.
  • eric
    2020-11-22 02:59:15
    As BD is the diameter, angle Q = angle S = 90 degree.
  • eric
    2020-11-22 03:01:02
    So triangle PQD congruent to triangle RSD
  • eric
    2020-11-22 03:01:29
    Hence PQ=RS.
  • student3674
    2020-11-22 14:06:20
    Can u pls draw it out?
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