How to cut an ellipse

[Milo30415470qiv4]

Hello, 

I would like to cut my ellipse like in this photo, but I can't use the pahfinder because of the stroke and I tried to add anchor points an then to use the scissors tool but as my ellipse is not a draw, it doesin't work. 

Can somebody help me please ?

[Ton Frederiks]

With the rectangle selected Object > Path > Divide Objects Below.

Remove the rest by selecting with the direct selection tool and delete.

[Milo30415470qiv4]

Thanks !!!

I still have one problem however, how do I get my ellipse to intersect at 0°, like the at the guide in the photo ?

[Ton Frederiks · Accepted solution]

That is how line endings work, like this or rounded.

To get what you want, you need to select Object > Path > Outline Stroke before using the Divide Objects Below.

[Milo30415470qiv4]

Thank you !

[Ton Frederiks]

Good to hear that helped.

[Jacob Bugge · Accepted solution]

Milo,

If there is no need to have a simple path, you can keep it as stroke/nofill and use the rectangle as an Opacity Mask with Invert Mask ticked (in the Transparency panel), remember to select both circle and rectangle. This is reversible and fully editable.

Or what Ton said.

[Milo30415470qiv4]

Thank you too !

[Jacob Bugge]

You are welcome, Milo.