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Lengths of the sides of triangles are given. Lets identify the types of triangles according to sides without drawing them. (a) 18 cm. 18 cm. 10 cm.

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Lengths of the sides of triangles are given. Lets identify the types of triangles according to sides without drawing them. (c) 8 cm., 2 cm., 9 cm.

Lengths of the sides of triangles are given. Lets identify the types of triangles according to sides without drawing them. (b) 5.2 cm., 5.2 cm., 5.2 cm.

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.

  • The sides of a triangle are 3 cm. 4 cm and 5 cm, then the radius of the incircle is

    A
    2 cm
    B
    `3/2 cm`
    C
    1cm
    D
    `1/2 cm`

  • The length of the sides of a triangle are 48 cm, 14 cm. its circum radius (in cm ) is

    A
    12.5
    B
    17.5
    C
    20
    D
    25

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