Question

the measure of three angles of a quadrilateral is 30 degree 70 degree and hundred degree find out the measurement of fourth angle​

Answer 1

Answer:

160 degree

Step-by-step explanation:

we know that

sum of all angles of a quadrilateral is 360

x+70+30+100=360

x=360-200

x=160

Answer 2

Answer:

160°

Step-by-step explanation:

∠1 = 30°

∠2 = 70°

∠3 = 100°

In a quadrilateral,

Sum of all 4 interior angles = 360°

So, ∠1 + ∠2 + ∠3 + ∠4 = 360°

Or, 30° + 70° + 100° + ∠4 = 360°

Or, 200° + ∠4 = 360°

Or, ∠4 = 360° - 200° = 160°

∴ Fourth angle of quadrilateral = 160°