1.

Two angle of a quadrilateral are 80and135 the other two angles are equal find the two other angle

Answer»

ANGLE A+ an.B+an.C+an.D=360

80+135+an.C+ an.C=360

215+2an.C=360

2 an.C= 360-215

an.C=145/2

So,

an.C&an.D are 145/2



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