if AOB is a straight line, then x is
x- 20°
2x+40°
Attachments:
![](https://hi-static.z-dn.net/files/dfd/84cf2383f34b6ddb347bcd69e7fbd46f.jpg)
Answers
Answered by
0
Answer:
We know that AOB will be a straight line only if the adjacent angles form a linear pair.
∠BOC + ∠AOC = 180o
By substituting the values we get
(4x – 36)o + (3x + 20)o = 180o
4x – 36o + 3x + 20o = 180o
On further calculation we get
7x = 180o – 20o + 36o
7x = 196o
By division we get
x = 196/7
x = 28
Therefore, the value of x is 28.
Answered by
6
Given,
The line AOB is a straight line.
To find,
The value of x.
Solution,
Know that the angle of a straight line is
Therefore,
Solve further,
Hence, the value of x is .
Similar questions