A triangle containing two tangent semicircles. What’s the proportion α : β?
Scroll down for a solution to this problem.
Solution

Poem
Tipi or tepee
A question of vocabulary
Is a shelter so sleepy
Where you can nestle
And have a rest
A place to dream,
sing,
write or pray
Or drink tea in the tipi
It’s so good for a lullaby
You can go camp with my tipi
And even sing a ditty
Don’t go pepee in the tipi
