Thirty centimeters is almost as long as a one-foot ruler. One centimeter is equivalent to 0.0328083989501 feet; thus, 30 centimeters is equal to 0.984251968504 feet. The converted length can be rounded up to 1 foot. Centimeter is a common International System of Units, or SI, measurement.
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What is 30 cm in inches?
15/02/2020 · Thirty centimeters is almost as long as a one-foot ruler. One centimeter is equivalent to 0.0328083989501 feet; thus, 30 centimeters is equal to 0.984251968504 feet. The converted length can be rounded up to 1 foot. Centimeter is a common International System of Units, or SI, measurement.
What is the length of each side of a 30 cm string?
08/11/2012 · A 30 cm object might be a remote. If an object at is 2.5 cm long is placed on the axis of a concave mirror that is 30 cm radius of curvature at a distance of 10 cm away from it, the position size and nature of the image formed would be 20 cm.
What is the length of 40 cm in inches?
1 cm to inches = 0.3937 inches. 5 cm to inches = 1.9685 inches. 10 cm to inches = 3.93701 inches. 20 cm to inches = 7.87402 inches. 30 cm to inches = 11.81102 inches. 40 cm to inches = 15.74803 inches. 50 cm to inches = 19.68504 inches. 75 cm to inches = 29.52756 inches. 100 cm to inches = 39.37008 inches.
What is the length of 20 cm in inches?
Click here👆to get an answer to your question ️ A piece of string is 30 cm long. What will be the length of each side if the string is used to form :(a) a square ?(b) an equilateral triangles ?(c) a regular hexagon ? ... Find the area of a quadrilateral one of whose diagonals is 25 cm long and the lengths of perpendiculars from the other two vertices are 16.4 cm and 11.6 cm respectively. …
What objects are 30cm long?
How long is 30 centimeters?It's about four-fifths as tall as a Bowling Pin. ... It's about half as long as a Woman's Footstep. ... It's about two-fifths as long as a Man's Footstep. ... It's about two-fifths as tall as Verne Troyer. ... It's about one-third as tall as General Tom Thumb. ... It's about one-fourth as tall as Kenny Baker.More items...
What size is 30cm?
Standard Metric 'CM' picture frame sizesCentimetres (cm)Millimetres (mm)Inches30 x 30 cm300 x 300 mm11.81" x 11.81"30 x 40 cm300 x 400 mm11.81" x 15.75"35 x 100 cm350 x 1000 mm13.78" x 39.37"40 x 40 cm400 x 400 mm15.75" x 15.75"22 more rows
Why is a ruler 30cm long?
Rulers, at least in the USA are 1 foot or 12 inches long. There are 2.54 cm in an inch. So, 12 inches equals 12×2.54 inches, which is 30.48 cm. Round that off and you get 30 cm.
What is 30 cm compared?
1 inch is 2.54 cm exact, by definition. 30/2.54 = 11.811 inches. Conversions.
How big is 30 inches wide?
30 inches is equal to 2.5 feet or 76.2 centimeters. If you were to place 4 regular-sized pencils on top of each other, it would equal 30 inches tall. Each pencil is 7.5 inches long.01-Jan-2022
What is 30 cm on a ruler?
The standard metric ruler is 30 cm long. Also, be aware that 30 cm does not directly equal 12 inches, even though they are often put on the same ruler! You can tell that this is a metric ruler because it's divided into 30 equally spaced sections and has "cm" written on it (ignore the inches below).15-Aug-2019
How long is a ruler?
12 in or 30 cm in length is useful for a ruler to be kept on a desk to help in drawing. Shorter rulers are convenient for keeping in a pocket. Longer rulers, e.g., 18 in (46 cm), are necessary in some cases. Rigid wooden or plastic yardsticks, 1 yard long, and meter sticks, 1 meter long, are also used.
Can rulers be wrong?
Is it possible for a tape measure/ruler to be inaccurate? - Quora. Of course it is. They can be manufactured imperfectly. There can be both offset errors and there can also be proportional errors that increase with distance.
Are rulers accurate?
Distances are normally measured with a ruler. The limit of accuracy of a ruler is indicated by how "precisely" you can read the length on that ruler's scale—that is, how well you can estimate between the marks. On the portion of the ruler shown in Figure1, the distance between the closest marks is 0.1 cm.
How big is a 30cm circle?
94.25 centimetersAnswer: The circumference of a circle with a diameter of 30 centimeters would be 94.25 centimeters.
How many inches is 20 30 cm?
Centimeters to inches conversion tableCentimeters (cm)Inches (") (decimal)Inches (") (fraction)9 cm3.5433 in3 35/64 in10 cm3.9370 in3 15/16 in20 cm7.8740 in7 7/8 in30 cm11.8110 in11 13/16 in17 more rows
What size is 30x40cm in inches?
2. Inches to cm conversion table and resolution requirementsInchesCm12x16"30x40cmMore details12x18"30x45cmMore details12x24"30x60cmMore details14x24"35x60cmMore details22 more rows
What is the unit of length of a centimeter?
A centimetre (American spelling centimeter, symbol cm) is a unit of length that is equal to one hundreth of a metre, the current SI base unit of length. A centimetre is part of a metric system. It is the base unit in the centimetre-gram-second system of units. A corresponding unit of area is the square centimetre.
How many inches are in a yard?
An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot.
How many millimeters is an inch?
The international inch is defined to be equal to 25.4 millimeters.
How much are 30 centimeters in inches?
30 centimeters equal 11.811023622 inches (30cm = 11.811023622in). Converting 30 cm to in is easy. Simply use our calculator above, or apply the formula to change the length 30 cm to in.
What is 30 centimeters in in?
To convert 30 cm to in multiply the length in centimeters by 0.3937007874. The 30 cm in in formula is [in] = 30 * 0.3937007874. Thus, for 30 centimeters in inch we get 11.811023622 in.
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