Question

In quadrilateral ABCD, A=40°, B=110°,C=70°,find the measure of d​

Answer 1

Answer:

140

Step-by-step explanation:

formula to find the measure of a side of a quadrilateral is

angle a + angle b + angle c + angle d = 360

40 +110+70+angle d =360

220+angle d = 360

angle d =360 -- 220

angle d = 140