if so then 1 foot is not exactly 12 inches. i read in a maths book that 30cm = 1 foot then why is 180cm not 6ft ??
180 is said to be 5'11''
2007-07-22 22:33:42 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
well a lot of people say that 1 inch = 2.5cm. Actually, it's not 2.5cm, it's actually 2.54 cm
2007-07-22 22:42:51 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Wow. This is confusing. Well, a lot of ppl say that 1 inch = 2 cm. Actually, it's not 2 cm, it's actually 2.5 cm. And if you look on a foot ruler, you'll see that the marking for 12 inches is not pointing straight at the marking on the other side.
2007-07-23 05:38:43 · answer #2 · answered by Aly C. 1 · 0⤊ 1⤋
Feet and Inches are Imperial Measurements.
One foot is exactly 12 inches, by definition.
Converting to metric one foot is 30.48cm
1 Inch = 2.54cm
The common comparison of 1ft = 30cm is a rough one and probably came about from school rulers.
2007-07-23 05:40:04 · answer #3 · answered by Music Man 2 · 0⤊ 0⤋
it is used in civil engineering drawing to avoid fraction when the measuring unit converted F.P.S to SI
eg. when it's said, 10" brick wall in FPS, in SI sytem, 25cm(250mm) brick wall.
ie 1"=25mm(2.5cm) but actually 1"=25.4mm(2.54cm)
and 1'(12")=25*12=300mm or 30cm.
it's a thumb rule specially used in civil engg.
2007-07-23 08:05:08 · answer #4 · answered by zonaith 2 · 0⤊ 0⤋
dont let the metric system get to ya', here in da' US, 12 inches is a foot! now how my girl interpets 12 inches is another story!
2007-07-23 05:40:39 · answer #5 · answered by HitMan Harry 3 · 0⤊ 0⤋
1 foot is a bit more than 30 cms. 30.48 i believe
2007-07-23 05:36:19 · answer #6 · answered by Anonymous · 0⤊ 0⤋
1 feet =0.3048 metre
= 30.48cm
180 cm = 5.90551 ft
There's some differences because of rounding.
2007-07-23 05:41:37 · answer #7 · answered by tanec69 1 · 0⤊ 0⤋
It depends on individuals. Baby have smaller foot, and grown up have much bigger foot!!!
kidding
2007-07-23 05:42:27 · answer #8 · answered by loser 2 · 0⤊ 0⤋
30 centimeter = 11.81 inches
2007-07-23 05:35:49 · answer #9 · answered by Anonymous · 0⤊ 0⤋
1 ft = 30.5 cm (to 1 decimal place)
2007-07-25 11:56:17 · answer #10 · answered by Como 7 · 0⤊ 1⤋