@Twoafros to No Stupid Questions • 8 months agoMath question: how do we get an irrational number pi from the ratio of circumference and the diameter of a circle?message-square42arrow-up152arrow-down13file-text
arrow-up149arrow-down1message-squareMath question: how do we get an irrational number pi from the ratio of circumference and the diameter of a circle?@Twoafros to No Stupid Questions • 8 months agomessage-square42file-text
minus-square@SkyezOpenlink2•8 months ago If you were to cut a string to the length of your circle’ diameter, it WILL ALWAYS wrap around by 3.14159 (or π times). Isn’t that backwards?
minus-square@Alteonlink2•8 months agoNope. The equation is P=πD. Meaning the Perimeter is equal to 3.14 times the length of your Diameter. You can visualize it here: https://m.youtube.com/watch?v=1lQfERPjkzk
minus-square@SkyezOpenlink2•8 months agoRight, so you’d need 3.14 strings of length D to cover the circle, D wouldn’t wrap around it itself.
minus-square@Alteonlink2•8 months agoIt was implied that it would wrap around the circle. I’ll update original post to clarify better.
minus-square@SkyezOpenlink3•8 months agoYeah that’s what I gathered, but it’s backwards. C = Pi D means you need pi strings, not that it’ll cover the circle pi times.
minus-square@Alteonlink4•8 months agoAhhhh. I see what your saying. It’s fixed. Yeah. Did not mean to intend that it wraps fully around the circle pi times. Good catch.
Isn’t that backwards?
Nope.
The equation is P=πD. Meaning the Perimeter is equal to 3.14 times the length of your Diameter.
You can visualize it here: https://m.youtube.com/watch?v=1lQfERPjkzk
Right, so you’d need 3.14 strings of length D to cover the circle, D wouldn’t wrap around it itself.
It was implied that it would wrap around the circle. I’ll update original post to clarify better.
Yeah that’s what I gathered, but it’s backwards. C = Pi D means you need pi strings, not that it’ll cover the circle pi times.
Ahhhh. I see what your saying. It’s fixed.
Yeah. Did not mean to intend that it wraps fully around the circle pi times. Good catch.
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