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In a triangle ABC, the sides are 6cm, 10...

In a triangle ABC, the sides are 6cm, 10 cm and 14 cm. Show that the triangle is obtuse-angled with the obtuse angle equal to `120^@`.

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Knowledge Check

  • The length of three sides of a triangle be 1cm,2cm and 3 cm then the value of smallest angle is

    A
    a)`pi/4`
    B
    b)`pi/6`
    C
    c)`pi/31`
    D
    d)No triangle will be formed.

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    In /_\ABC , if a = 3. b = 5 and c =7, show that the triangle is obtused.

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