### Other Chapters For 7th

• 7th-class Science Chapter 28

Energy is an important ingredient in all phases of society. We live in a very interdependent...
• 7th-class Science Chapter 27

Heat transfer is a discipline of thermal engineering that concerns the generation, use,...
• 7th-class Science Chapter 26

forms of energy: thermal (heat), light, electrical, sound, kinetic, chemical, nuclear and...
• 7th-class Science Chapter 25

Energy cannot be created or destroyed, only converted from one form to another. These...
• 7th-class Science Chapter 24

In everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the...
• 7th-class Science Chapter 23

In physics, a moment is an expression involving the product of a distance and a physical...
• 7th-class Science Chapter 22

At terminal velocity the gravitational force down equals the air resistance force up. vehicle...
• 7th-class Science Chapter 21

The density, or more precisely, the volumetric mass density, of a substance is its mass per unit...
• 7th-class Science Chapter 20

Measurement is the assignment of a number to a characteristic of an object or event, which can...
• 7th-class Science Chapter 19

The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic...

# 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

### IGCSE 7th CLASS Maths OTHER CHAPTERS

• 7th-class Maths Chapter 28

Statistics is a branch of mathematics dealing with the collection, analysis, interpretation,...
• 7th-class Maths Chapter 28

Division is one of the four basic operations of arithmetic, the others being addition,...
• 7th-class Maths Chapter 27

n probability theory, an experiment or trial (see below) is any procedure that can be infinitely...
• 7th-class Maths Chapter 26

The only difference between cubes and cuboids is the shape of the six faces. Each face of...
• 7th-class Maths Chapter 25

In calculus, integration by substitution, also known as u-substitution, is a method for finding...
• 7th-class Maths Chapter 23

Probability is the measure of the likelihood that an event will occur. See glossary of...
• 7th-class Maths Chapter 22

The 'perimeter' of a shape is the distance around it. In order to calculate the perimeter of a...
• 7th-class Maths Chapter 19

A fraction (from Latin fractus, "broken") represents a part of a whole or, more generally, any...
• 7th-class Maths Chapter 18

Mental calculation or mental maths is an old mathematical tool. It is doing maths without using...
• 7th-class Maths Chapter 17

In mathematics, transformation geometry (or transformational geometry) is the name of a...