Scale
Drawing Scale Drawing IntroductionScale drawing is a fundamental concept in mathematics and
art that involves creating a proportional representation of an object or space.
In IGCSE, understanding scale drawings...
PYTHAGORAS THEOREMThe Pythagorean theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of...
How to find missing angle or side in right angle triangleTo find a missing angle or side in a right-angled triangle, you can use trigonometric ratios such as sine, cosine, and tangent. These ratios relate the angles...
Direct and inverse proportion Direct Proportion:In direct proportion, two quantities vary in such a way that an increase in one quantity leads to a proportionate increase in the other quantity, or a decrease in one...
Types of numbersThere are several types of numbers in mathematics. Here are some of the most common types:Natural Numbers: Natural numbers are the counting numbers, starting from 1 and going infinitely upward....
Suppose you are standing at point A and you want to determine the bearing angle to point B.Copy N
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B
To find the bearing angle from A to B, you need to measure the angle in...
Circle TheoremsThe Circle Theorems you need to be familiar with are as follows:Angle at the Center Theorem:The angle subtended at the center of a circle is twice the angle subtended at the circumference by the same...
Rational and irrational numbers with exampleRational Numbers:A rational number is any number that can be expressed as a fraction (ratio) of two integers, where the denominator is not zero. In other words, a rational...
How to solve linear simultaneous equationsTo solve a system of linear simultaneous equations, you
can use various methods such as substitution, elimination, or matrix methods.
I'll explain the steps for each method:
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Find the equation of the perpendicular bisectorTo find the equation of the perpendicular bisector of a given line, you need to follow these steps:Determine the slope of the given line. Let's denote it as mFind the...