Interpretation:
The correct reported volume of the cardboard needs to be determined.
Concept introduction:
The volume of the rectangle can be calculated as follows:
Here, l is length, b is breadth and h is height of the rectangle.
Rules for rounding off numbers are as follows:
If the number to be rounded off is followed by digit 5 or greater than 5, the number will be rounded up.
For example: Rounding off number 38, the number is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.
If the number to be rounded off is followed by digit zero or less than 5, the number will be rounded down.
For example: Rounding off number 33, the number is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.
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General Chemistry: Principles and Modern Applications (11th Edition)
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- • What is the density in g/cm^3 of 255g of solid metal with the volume of 41cm^3?arrow_forwardNote: In the calculations below. consider all distances to be measured between the centers of the spheres. From a study of the right triangles involved in a cube, as illustrated below, where (a) is the edge length. (f) is the face diagonal, and (b) is the body diagonal, the following is apparent: b b²=f²+ a² f² = a² + a² b²=3a2 In calculating the volumes, not that only one-eighth of each of the corner spheres is inside the cube which has as its corners the centers of the spheres. The volume of a sphere may be calculated from its radius by using the formula: V = 4/3лг³ 1arrow_forwardWhat is number 5?arrow_forward
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