 # 7th Class Chapter No 24 - Ratio and proportion in Maths for IGCSE

Proportionality may refer to: Proportionality (mathematics), the relationship between two variables whose ratio is constant Proportionality (law), A legal principle under municipal law in which the punishment of a certain crime should be in proportion to the severity of the crime itself, and under international law an important consideration when assessing the military necessity of an attack on a military objective. The ratio of one quantity to another, especially of a part compared to a whole (see also fraction). In another mathematical context, a proportion is the statement of equality between two ratios. Proportion (architecture) describes the relationships between elements of a design Body proportions, in art, are the study of relation of human body parts to each other and the whole Proportions, or geometric aspect ratio In mathematics, a ratio is a relationship between two numbers indicating how many times the first number contains the second.For example, if a bowl of fruit contains eight oranges and six lemons, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3). Similarly, the ratio of lemons to oranges is 6:8 (or 3:4) and the ratio of oranges to the total amount of fruit is 8:14 (or 4:7). The numbers in a ratio may be quantities of any kind, such as counts of persons or objects, or such as measurements of lengths, weights, time, etc.
Posted in 7th on February 13 2019 at 03:29 PM

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