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

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

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Charlotte

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

    Reply

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