Results of Siri

[JetFighter]

I ask Siri a question, like how do I find the perimeter of a circle? and she comes back with a result from Wolfam Alpha.
I know she won't read the results aloud, but I can see it on the screen. 2πr
Now a minute and a half later my phone goes to sleep, and when I re-awaken it, the results are gone.
Can I find that data anywhere?, or do I have to ask Siri again?

I apologize if this has been covered elsewhere.

 

[hookbill]

Yes, you have to ask again. It's just like me asking her what the temperature is outside. If I close her display out I have to ask again. No problem asking the question, that's one I haven't seen, and I think it's a good question.

 

[JetFighter]

That's what I figured.
I suppose I could simultaneously press the power, and home button to put a screen shot in the camera roll.
Thanks