Question

If ∠1 + ∠2 + ∠3 = 280°, then the measure of ∠4 is equal to * 1 point a) 80° b) 50° c) 75° d) 90°

Answer 1

Answer:

75

Step-by-step explanation:

So we divided 4 into 280

Answer 2

Answer:

May be it will be 80

bcoz

If 3 angles sum is 280

we know that sum of all interior angle is 360

so 360-280= 80

Not sure but still