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Take any quadrilateral , say ABCD .Di...

Take any quadrilateral , say ABCD .Divide it into two triangles by drawing a diagonal . You get six angles 1,2,3 ,4,5 and 6 . Use the angles sum property of a triangle and argue how the sum of the measures of `angleA,angleB,angleCangleD` amounts to `180^(@)+180^(@)=360^(@)` .

Text Solution

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The correct Answer is:
`360^@`
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What is the sum of the measures of the angles of a quadrilateral?

IF the angles of a triangle are in the ratio 1:2:3 find the measure of smllest angles.

Knowledge Check

  • What is the sum of three angles of a triangle?

    A
    `80^(@)`
    B
    `90^(@)`
    C
    `180^(@)`
    D
    `360^(@)`

  • If one angle of a triangle is right angle then sum of other two angles will be

    A
    `110^(@)`
    B
    `80^(@)`
    C
    `100^(@)`
    D
    `90^(@)`

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