The diameter of one bicycle wheel is 28 inches and its spokes run from the hub (or center) to the edge of the rim. The diameter of another bicycle wheel 21 inches. What is the difference in inches between the length of the spokes of the two wheels?
2007-06-10 06:38:24 · 8 answers · asked by Lee H 1 in Science & Mathematics ➔ Mathematics
The length of a spoke is 1/2 the diameter since the spoke runs from the rim to the center.
So, 1/2(28) - 1/2(21) = 14 - 10.5 = 3.5 inches
2007-06-10 06:42:15 · answer #1 · answered by Steve A 7 · 0⤊ 0⤋
Diameter Inches
2016-12-15 12:29:23 · answer #2 · answered by coccia 4 · 0⤊ 0⤋
The diameters differ by 28 - 21 = 7 and half of that will give the radius of each spoke, which is also its length. 3 and a half inches will be the difference between the spokes of the two wheels.
2007-06-10 06:44:27 · answer #3 · answered by Swamy 7 · 0⤊ 0⤋
A spoke runs from the center to the edge. That tells us its the lenght of the radius. The radius is 1/2 of the diameter.
28/2=14
21/2=10.5
14-10.5=3.5
The difference is 3.5 inches.
2007-06-10 06:42:43 · answer #4 · answered by Cool Nerd At Your Service 4 · 0⤊ 0⤋
diameter of one = 28 therefore radius = 28/2 = 14 inches
diameter of second = 21 therefore radius = 21/2 = 10.5 inches
therefore difference between the length of the spokes = 14-10.5 = 3.5 inches.
2007-06-10 06:42:39 · answer #5 · answered by ShemaYisrael 2 · 0⤊ 0⤋
The spokes are half the length of the diameter. One is 14 inches and the other is 10.5 inches. The difference is 3.5 inches.
2007-06-10 06:43:21 · answer #6 · answered by Anonymous · 0⤊ 0⤋
difference = (28-21)/2 = 3.5 inches
2007-06-10 06:43:08 · answer #7 · answered by CPUcate 6 · 0⤊ 0⤋
how tall is a tree 8-10 diameter?
2016-02-24 09:40:21 · answer #8 · answered by Anonymous · 0⤊ 0⤋