Question

IN A QUADRILATERAL ABCD IF angleA=80, angle B=95 angle C=112 find angle D

Answer 1

we know that sum of all angles of a quadrilateral is 360°

so , in the given quadrilateral ABCD

angle A + angle B + angle C + angle D = 360°

=> 80°+95°+112°+angle D = 360°

=> angle D = 360-(80+95+112)

=> angle D = 360°-287° = 73°


hope this helps

Answer 2

SUM OF ALL THE ANGLES OF A QUADRILATERAL=360°

ANGLE(A+B+C+D) = 360°
80°+95°+112°+D=360°
D=360-(80°+95°+112°)
D=360-287
D=73°