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How Much Is 8cm
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Centimeters are metric units. You can use most measuring rods in centimeters. However, it’s important to make sure you’re looking at the correct units, as many trees also display inches. If you don’t have a ruler, you can estimate the measurements in centimeters using ordinary table objects. You can also convert other measurement units to centimeters.
This article was co-authored by Staff. Our team of trained editors and researchers proofread articles for accuracy and completeness. The content management team closely monitors our editorial work to ensure that each article is supported by reliable research and meets our high quality standards. This article has been viewed 657,926 times.
To measure in centimeters, use a ruler with cm or mm markings on the side. Align the edge of the object with the first centimeter line on the ruler, then find the length in whole centimeters or larger numbers on the ruler. If the measurement is not accurate, count the number of millimeters or small ruler lines past the largest whole centimeter. Every millimeter is one tenth of a centimeter. If you need to estimate centimeters using objects, keep reading!Question 5 (introduction) A cubic box has 10 cm on each side and another rhombus box has height 12.5 cm, width 10 cm and 8 cm high. Which box has the greater lateral area and by how much? Lateral area of a cube Lateral area of a cube = 4 face area = 4 × (side)2 = 4a2 lateral area of a cuboid lateral area of a cuboid lateral area of a cuboid = area of a cuboid – area above – area below = 2(lb + bh + lh) – lb – lb = 2(lb) + 2(bh) + 2(lh) – 2(lb) = 2lh + 2bh Question 5 A cuboid box has 10 cm on each edge and another cuboid box has length 12.5 cm, width 10 cm and height 8 cm. Which box has the greater lateral area and by how much? Side of the cube = a = 10 cm Length of the box (l) = 12.5 cm Width of the box (b) = 10 cm Height of the box (h) = 8 cm Side area of the box of the cube = 4(a)2 = 4(10)2 = 4 × (100) = 400 cm2 So, lateral area of the cubic box > lateral area of the cuboidal box lateral area of the cuboidal box − lateral area of the cuboidal box = 400 cm2 − 360 cm2 = 40 cm2 therefore, the lateral area of the cuboidal box is 40 cm2 more than the lateral area of the cuboidal box. Question 5 A cubic box has each edge 10 cm and another cuboid box is 12.5 cm long, 10 cm wide and 8 cm high. (ii) Which box has the smaller total area and by how much? Side of the cube = a = 10 cm Length of the box (l) = 12.5 cm Width of the box (b) = 10 cm Height of the box (h) = 8 cm Therefore, the total area of the cube box < total area of the cuboid box Total area of the square box − Total area of the cube box = 710 cm2 − 600 cm2 = 110 cm2 So the total area of the cuboid box is 110 cm2 less than the total area of the cuboid box.
Davneet Singh has a BSc from the Indian Institute of Technology, Kanpur. He has been teaching for the past 13 years. It offers courses in Mathematics, Science, Social Science, Physics, Chemistry and Computer Science in.
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