Question

attached.

What is the value of x?

Answer 1

where is the attachement

Answer 2

@thinker1 i just attached it.. sorry my internet was messing up

Answer 3

do you know how to find the angle sum of any polygon...?

Answer 4

130

Answer 5

the equation should be :
x+x+90+90+x+10+x+10 = 6(180) - 360
4x + 200 = 4(180) + 2(180) - 360
4x + 200 = 4(180)
both side divide by 4,
x + 50 = 180
x = 180 - 50
x = ....

Answer 6

yes there is a formula which i dont prefer to remember but go oa general ide that sum of angle goes o adding by 180 .thus the formula becomes