Question

Please find the answer

Answer 1

x = 20

Explanation:

2x + 2x + 10 = 90

4x + 10 = 90

4x = 80

x = 20

Answer 2

Angle AOB is made up of angle AOC and COB.

AOC + COB = AOB

Since AOB is a right angle, it is 90°.

Using the values given, AOC =
`2x` and COB =
`2x+10`.

Therefore,

`2x+2x+10=90`

Subtract 10 from both sides:

`2x+2x+10-10=90-10`

`2x+2x=80`

`4x=80`

Divide both sides by 4:

`(4x)/(4) =(80)/(4)`

`x=20`