Topics:
Length:
Length is a one-dimensional measure.a0 We can measure the length of various objects. The size of this object is expressed in a unit of length. The unit of length is also referred to as the length measure. Using the ruler in the image below, a length of 5 cm is measured.
The length measure can be expressed in the following units:
- millimeter (mm)
- centimeter (cm)
- decimeter (dm)
- meter (m)
- decameter (dam)
- hectometer (hm)
- kilometer (km)
Between each unit of length, the step is a factor of 10. From large to small, we multiply by 10 and vice versa, divide by 10.
The image above shows that 1 meter is equal to 0.001 km and 1000 mm.
From small to large is times 10.
mm -> cm -> dm -> m -> dam -> hm -> km
From large to small is divided by 10.
km -> hm -> dam -> m -> dm -> cm -> mm
Surface Area:
Surface area is a two-dimensional measure. We express the surface area of a certain area or object in a surface unit. The surface is calculated by multiplying the length by the width.
An object with a length of 8 by 5 centimeters has a surface area of (8*5) = 40 cmb2.a0
- square millimeter (mmb2)
- square centimeter (cmb2)
- square decimeter (dmb2)
- square meter (mb2)
- square decameter (damb2)
- square hectometer (hmb2)
- square kilometer (kmb2)
In automotive engineering, for example, we deal with the frontal area of a passenger car which measures 1.9 mb2. This is equivalent to 19000 cmb2.
From small to large is times 100.
mmb2 -> cmb2 -> dmb2 -> mb2 -> damb2 -> hmb2 -> kmb2
From large to small is divided by 100.
kmb2 -> hmb2 -> damb2 -> mb2 -> dmb2 -> cmb2-> mmb2
1 hmb2 = 1 ha.
A square hectometer (hmb2) is also called a hectare (ha). One hectare is an area of 100 x 100 meters and is equal to 10,000 mb2.
1 damb2 = 1 are.
A square decameter (damb2) is also called an are. One are is equal to an area of 100 mb2.
Volume:
Volume is a three-dimensional measure. With volume, we deal with the length, width, and depth measure. Multiplying the length, width, and depth gives the volume. A cube with a length of 7 cm, a width of 8 cm, and a depth of 8 cm has a volume of: 7*8*8 (l*w*h) = 448 cmb3.
- cubic millimeter (mmb3)
- cubic centimeter (cmb3)
- cubic decimeter (dmb3)
- cubic meter (mb3)
- cubic decameter (damb3)
- cubic hectometer (hmb3)
- cubic kilometer (kmb3)
From small to large is times 1000.
mmb3 -> cmb3a0-> dmb3a0-> mb3a0-> damb3a0-> hmb3a0-> kmb3
From large to small is divided by 1000.
kmb3a0-> hmb3a0-> damb3a0-> mb3a0-> dmb3a0-> cmb3-> mmb3
1 cmb3 = ml = cc.
In automotive engineering, for example, we deal with the engine displacement of a motor which is 1988 cmb3. This is equal to 1988 ml and 1988 cc.
cmb3 to dmb3 = liter.
Looking at the table, the multiplication factor between cmb3 and dmb3 is 1000. Converting cmb3 to dmb3, we get 1.988 dmb3 which is equal to 1.988 liters.