Question

What is the value of x in this Q.​

Answer 1

Answer:

180-100=80

180-70=110

and 90

Now

80+110+90+x=360

80 ans Plz mark as brainliest :)

Answer 2

Answer:

let unknown angles in quadrilateral be y and z.

first,

70°+ z = 180°( linear pair)

z= 180°- 70°

z= 110°

now,

100°+y= 180°(linear pair)

y = 180°- 100°

y = 80°

sum of all angles of a quad. = 360°

x+y+z+90° = 360°

x+80°+110°+90°=360°

x+280°=360°

x =360°-280°

x= 80°