(a) what is th circumference of one wheel
(b) how far would the ike travel in 100 revolutions(turns) of the wheels
2007-07-30 12:56:43 · 6 answers · asked by jaktalebojeal 1 in Science & Mathematics ➔ Mathematics
a)
C = πd = 66π cm
C = 207.3 cm
b)
100 revs = 20730 cm = 207.3 m
2007-07-31 19:52:59 · answer #1 · answered by Como 7 · 0⤊ 0⤋
the circumference of a circle has the equation 2(pi)(radius) or (pi)(diameter) since diameter = 2(radius)
Therefore, the circumference is 66(pi)cm.
If you will travel for 100 revolutions of the wheels, its like multiplying the circumference 100 times. Thus, the distance you'll travel is 6600(pi) cm or 20724cm if pi = 3.14
2007-07-30 20:06:15 · answer #2 · answered by valkyrie 1 · 0⤊ 0⤋
The answer to A is 207.345 CM ( Pi x 66)and the answer to B is that in 100 revolutions is that times 100 so about 207 Metres
2007-07-30 21:40:01 · answer #3 · answered by Duncan D 2 · 0⤊ 0⤋
a)...Circumference = Pi x Diameter. = 3.14 x 66 = 207.24cm
= 2.07m.
b)...100 x 2.07 = 207m travelled = 0.207km.
2007-07-30 20:12:31 · answer #4 · answered by Norrie 7 · 0⤊ 0⤋
C = 2 pi * r
C = 2 * 3.14 *(66/2)
C = 207.24 cm
1 relolution = 1 permeter
100 rel / (207.24 cm / 1rel) = 20724 cm
2007-07-30 20:09:18 · answer #5 · answered by 7 · 0⤊ 0⤋
C = Ï D = 207.3 cm = 2.073 m
In 100 revs, distance =100C = 207.3 m
2007-07-30 20:00:25 · answer #6 · answered by Dr D 7 · 0⤊ 0⤋