Examine whether you can construct triangle DEF such that EF=7.2cm,angle E=110 degree and angle F=80 degree.Justify your answer.

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no,we can not draw the triangle

there is a property

Sum of all Angle==180 deg.


angleD+angleE+angleF=180 deg.

let the angle d be the x

x+110+80=180 deg.

x+190 is not equal to 180 deg.

so,therefore, it is not possible to construct a triangle

  • 1

No, because angle sum property of triangle i.e. the three angles of the triangles should be 180 degree.

But in given question 110 + 80 = 190 .

Therefore the triangle cannot be constructed.

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