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Brains trust: can anyone tell me the ratio formula to use to find out the diameter needed for a 61cm circumference? (I have other sizes required too, hence why I'm asking for the maths).

Image description: piece of paper, on it written "default printed size @ is a softball size sphere (30.5cm circumference) ~ 9.7cm diameter".

Please share widely. Slainte.

I'll be posting the questions from AMS 2025 Daily Epsilon of Math Calendar daily from now on. I should have started earlier (doing it on Blue sky for some time). Hope it will be of interest

Here's the question for April 20th. For those unfamiliar with the calendar, the answer is always the day of the month. Looking for imaginative solutions is the aim.

I'll be posting the questions from AMS 2025 Daily Epsilon of Math Calendar daily from now on. I should have started earlier (doing it on Blue sky for some time). Hope it will be of interest

Here's the question for April 13th. For those unfamiliar with the calendar, the answer is always the day of the month. Looking for imaginative solutions is the aim.

# #Pachli 2.11.0 is released

## New features include

- Support translation throughout the app
- Experimental Markdown support
- Content filters default to all contexts

## Fixes include:

- Toot button accessibility
- Grammar fixes
- Report UI updates
- Content filter updates
- Fewer crashes

## Updated translations

- Finnish, Indonesian, Irish, Latvian, Norwegian Nynorsk, Polish, Slovak, Spanish

More details at pachli.app/pachli/2025/03/31/2.