Question

the sum of two opposite angles of quadrilateral is to 280° . the other two angles are equal. find the measure of the equal angles.​

Answer 1

Answer:

sum of all angles of quardilateral is 360'

Step-by-step explanation:

x+x+280=360

2x=360-280

2x=80

x=80/2

x=40 hope it help u mark it as brainlist

Answer 2

Step-by-step explanation:

Let one equal angle be x.

Therefore, another angle is also x.

so,

x+x+280=360°. (sum of all the angles of quadrilateral)

2x =360-280

2x= 80

x= 80/2

x=40°

Hence,two equal angle s are 40° and40°