Question

find the 4th angle of quadrilateral if 3 of its angle are 85 degress,65 degress and 110 degress

Answer 1

Answer:

the answer is 100 degrees

Step-by-step explanation:

as the sum of all angles in a quadrilateral is 360.

let,the unknown angle be x

x+85+65+110=360

x+260=360

x=360-260

x=100 degrees

Therefore,the fourth angle is 100 degrees

IT WILL DEFINITELY HELPS U

Answer 2

Answer:

sum of angles of a quadrilateral=360°

ATQ

angle 1=85°, angle 2=65° and angle 3=110° and let angle 4 be x

therefore

85+65+110+x=360°

260°+ x°= 360°

x=360-260

x=100°....