Question

the two adjacent angles of a quadrilateral are 40 and 140 . the other two angles are equal what is the measure of each of these equal angles ?

60
90
140
180 ​

Answer 1

Answer:

90

Step-by-step explanation:

<a+<b+<c+<d=360

here as per ques c=d

therefore,

140+40+2×=360

2×=180

×=90

Answer 2

Answer:

90°

Step-by-step explanation:

as we know , the sum of all angles of a quadrilateral is 360°

therefore , take the other two angles as x

40 + 140 + 2x ( they are equal ) = 360 °

180 + 2x = 360 °

=> 2x = 360 - 180

=> 2x = 180°

so , x = 90 °