Math mini-contest problem on D.Buzz for July 2021 [Day 2, Problem A] 😎
A curved rooftop can be represented as an arc comprising 20% of the circumference of a circle, whose endpoints are 15 meters apart. How long is the roof?
Rules at @savvyplayer/official-rules-for-my-july-2021-3-day-math-mini-contest-for-d-buzz.