Question

find fourth angles if three angles of quardilateral 90,100 and 45​

Answer 1

Total angle of a quadrilateral is 360.

Let the fourth angle be x.

x+90+100+45 = 360

x+235=360

x=360-235

x=125

Answer 2

Answer = 125°

The answer is 125° as all angles in quadrilateral sum upto 360°. So the way to find the answer is :-

• 360 - (90 + 100 + 45)

• 360 - 235

• 125

Therefore the answer is 125°.