Is it possible to construct a quadrilateral abcd in which ab =5cm bc=7.5cm, angle A=80 degree, angle B=140 degree and angle C = 145 degree ? If not, give reason.
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NO IT IS NOT POSSIBLE BECOZ WHEN YOU FIND FOIRTH ANGLE IT COMES NEGATIVE
SUM OF ANG.OF QUADRILATERAL
let angle D be x
A+B+C+D=360°
=145°+140°+80°+x°=360°
=365°+x°=360°
=x=360-365
x=-5
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