RT @engineers_feed: Calculating the surface area of a sphere. https://t.co/bSOU3ckKoM 0 atbildes

	Ernests Štāls - mastodon.social/@ernests (2020-05-02 12:01:43) @twitter	RT @engineers_feed: Calculating the surface area of a sphere. https://t.co/bSOU3ckKoM