(a) If each angle of a triangle is less than the sum of the other two, show that the triangle is acute angled.​

1 thought on “(a) If each angle of a triangle is less than the sum of the other two, show that the triangle is acute angled.​”

1. GIVEN:

   IN TRIANGLE ABC,

   1) A+B > C

   B+C >A

   A+C >B

   PROOF

   A+B+C=180 SUM OF MEASURES OF ALL ANG OF TRI

   2} A+B=180-C

   FROM 1 AND 2…

   180-C > C

   180> 2C

   90 > C DIVIDE BY 2

   SIMILARLY ,,

   90> A

   90>B

   PROVED

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