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Chorus: take all the points equidistant from one center and in an instant you have a shape that very familiar a circle is round and well, it’s circular parts are real easy, a few you need to know radius is length of center to outside, yo double radius and you’ve got diameter goes from one side straight to the other take the outside and go all the way around length is circumference, like a king’s crown go around a wheel, my bling, or anything that’s round see circumference everywhere, don’t be no clown special number you also need to know called π mathematical constant, same everywhere, why divide circumference by diameter, this is pretty fly always get 3.14 no matter circle’s size Chorus Egyptians were the first to discover pi used it to build the pyramids so high tallest manmade structures in the world, believe me for nearly 4,000 years until 1311 A.D. let’s say circumference is C, diameter d then C=πd, aint this easy if radius is r then C is 2πr Since d is double r, now we’re goin really far let’s try an example with Dayton 22’s 22 inches in diameter you use use C=πd on that sweet ride length around that rim is 69.115 Chorus what if you want to know the size of some bling droppin a G per sq inch of that round thing need to know the area to figure out the cost A=πr2, now you the boss times the radius by itself then pi radius is 3 inches, 32 is 9 wastin your dollars, instead you could buy a car price of that piece is more than 28 large when your ridin’ on your Ds and you got a mad thirst is a soda can enough, gotta know sumthin’ first can is a cylinder, top is a circle aight find area then multiply by height Chorus find volume of how much the can can fill it’s V=πr2h, now you can chill until you get to the basketball game see that sphere get taken to the hole by LeBron James rules say make C 29.5 inches dude can you find the volume if it’s 4/3πr3 any circumference equals 2πr told you this is true no matter where you are divide each side by 2 and get 14.75 then by π and r equals 4.695 plug that in to 4/3πr3 fo sho volume in cubic inches is about 434
