# Thread: Alternate angles

1. ## Alternate angles

Can anyone tell me whether the angles alpha and theta are alternate??
Why or why not??

Please clear my confusion.Thanks

2. ## Re: Alternate angles

Originally Posted by hacker804

Can anyone tell me whether the angles alpha and theta are alternate??
Why or why not??

Please clear my confusion.Thanks
They are. The line AC intersects the two lines BD and AD and $\alpha$ and $\theta$ are on opposite sides of AC.