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Given that OA=3cm, OB=4cm angleAOB=90°. AC=12cm&BC=13cm …

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Given that OA=3cm, OB=4cm angleAOB=90°. AC=12cm&BC=13cm prove that angleCAB=90° .

Posted by Vijendra Pratihar 7 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Chandrashekhar Wankhede 7 years, 9 months ago

Find AB using Pythagoras theorem, AB = 5cm, in triangle ABC, AC = 12, BC = 13, AB = 5 cm, BC is longest side, verify Sqr (AB) + Sqr (AC) = Sqr (BC), it proves triangle ABC is right angle triangle and angle opposite to BC is 90 , that is angle CAB = 90

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CBSE > Class 10 > Mathematics