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The old Imperial ruler was one foot long. To enable pupils to carry one in their "pencil box", a version that was half as long was introduced.
1 foot = 30.48 cm so rulers are graduated to 30 cm or half that length (= 15 cm).
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How many centmeters are in a ruler?
There is no set length for a ruler, as they are produced in various sizes. The more common sizes are 15 cm, 30 cm and 100 cm There are two main methods to see what size your ruler is; a) Find another one that is longer than your own and measure the the length of yours using that one b) Look at the scale on your own ruler. The largest number there indicates the length.
How long is a perimeter of a 12cm and a 3cm rectangle?
The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.The perimeter of a 12 cm x 3 cm rectangle is 2*(12+3) cm = 2*15 cm = 30 cm.
If the diameter of a circle 30 cm what is its radius?
The radius of a circle equals the diameter divided by two. 30/2 is 15, so your answer is 15 cm.
What does 1.4 cm look like oon a ruler?
1.4 cm is the same as 14 mm on a ruler
What is a length of a ruler in cm?
Answer: 15CM Answer: They come in different sizes, actually. Sizes between 20 and 30 centimeters are fairly common.
How many centimeters is 1ruler?
For a small ruler . There are 15 cm in 1 ruler. wheras a big ruler has 30 cm in a ruler.
How long is 35 cm?
A small measures 15 cm .It is 15 cm long . It means 2 small ruler will be equal to 30 cm and 5 cm of 3rd ruler . It is 35 cm long .
What would you use to measure the length of a classroom'is it a meter ruler or a 30cm ruler?
You could use either, it's just a little more work with the 30 cm ruler, but the result will be the same.You could use either, it's just a little more work with the 30 cm ruler, but the result will be the same.
How long is 90 cm?
1 standard ruler =15 cm . 90 cm =90/15 . =6 standard ruler .
What object is the length of a centimeter?
the measuring ruler that we use are the object which has length of 15 cm. 1 ruler =15 cm.
Where is 15.25 cm on a ruler?
15.25 cm on a ruler is located at 15 centimeters and 2.5 millimeters.
How many cent a meters are in a ruler?
Firstly, it is centameters. But, to answer your question, there are 30 cm on a normal sized ruler, and either 10 or 12 on a smaller one. Why do you ask?
What is 138 centimeters?
1 standard ruler =15 cm. Now, if it is 138 cm we will convert into no.of rulers. So,138/15 =9 rulers of 15 cm . 10 th ruler with 3 cm.
Meters on a ruler?
A metre ruler is a ruler that measures mm, cm, up to a metre.
How can you measure a 650 mm ribbon with a 30 cm ruler?
1 cm = 10 mm. Start with ruler at 0 and mark ribbon at 30 cm. Then place ruler at the mark and measure 30 cm more and make another mark- you are up to 60 cm or 600 mm. Then place ruler at this mark and measure 5 cm, or 50 mm. Now you have a 650 mm ribbon.
What kind of ruler was King James you?
he was a 30 cm ruler... green too
How many lines are there in inch and cm of a ruler?
A standard metric ruler is just slightly longer than 30 centimetres and slightly longer than 12 inches.The "slightly longer" is for the extra bits of ruler that stick out in front of the 0 (zero) cm/in at the beginning of the ruler and behind the 30 cm/12 in mark at the end of the ruler
