Question

three angles of a quadrilateral are 70 degree 90 degree and 60 degree the fourth angle is​

Answer 1

Answer:

fourth angle is 140 degree..

Step-by-step explanation:

sum of all angles of a quadrilateral is 360 degree.

70+60+90+x=360

220+x=360

x=360-220

x=140

Answer 2

Answer:

Sum of angles of a quadrilateral=360

angle 1+ angle 2 + angle 3+ angle 4=360

70+90+60+angle 4=360

220+angle 4=360

angle 4=360-220

angle 4=140

MARK AS BRAINLIEST