What are Isosceles and Equilateral Triangles and many more essential keywords regarding Geometry- Help with IGCSE GCSE Maths

Trigonometry

Check this selection of links which will bring you to the pages where I explain trigonometry to you. It is important to understand trigonometry is you want to pass your IGCSE GCSE Maths exam. Have a look at the contents page to see all my resources about trigonometry.

Bearings

Angles of Elevation and Depression

Trigonometry

Sine and Cosine Rule

Geometrical vocabulary

If you want to understand all maths questions involving Geometry and want to be able to confidently find the size of angles, construct figures, find lengths in various polygons etc, then you need to know the language. The following videos discuss all the keywords necessary for you to know to understand Maths and especially Geometry. The example maths questions will explain step by step to you for instance what a reflex angle, decagon, isosceles triangle etc is. Study the maths videos therefore carefully for your Maths revision and prepare yourself well for your Maths exam! If you don't understand Geometry, then let me know on the forum on the homepage of this site and i will help you with your maths. Good luck and have fun!

What are Acute, Right, Obtuse and Reflex Angles

In this maths video we will have a look at different types of angles. What is an acute angle and what is the difference between an obtuse and a reflex angle? All these questions will be answered in the following maths activity.

What are Isosceles, Equilateral and other types of Triangle

Have a look at the next maths resource in which we will discuss different types of triangles. What is the difference between an Isosceles triangle and an Equilateral Triangle? We will also have a look at other types of triangles

What are Polygons; Hexagon, Heptagon, Octagon, Nonagon etc

If you want to understand Geometry, you will need to know the language used. The next maths video will show you the names of all polygons which you need to know. Do you know how many sides and how many angles a pentagon, hexagon, heptagon, octagon, decagon and dodecagon for instance have? After looking at the next video you will! Do you know the special name for a 9-sided polygon?

What are Quadrilaterals; Trapezium, Rhombus, Kite, Parallelogram etc

In this video we will have a look at all sorts of Quadrilaterals. A quadrilateral is a 4-sided polygon. I am sure you know what a square is, but I am also quite sure that you will have difficulties giving an accurate definition or description of a square. Look at the next maths video in which we will accurately describe and discover what a square, rectangle, parallelogram, rhombus, trapezium and kite are.

What are Chords, Segments, Sectors, Diameters, Radius etc

There are many important keywords regarding circles you need to familiarise yourself with. What is a chord, segment, sector, radius and diameter of a circle? After looking at the following video you will know the answer to all these maths questions. Perhaps it is an idea to make a summary sheet with all the important maths language and keywords you have learned so far!

What is Congruence and Similarity and what is the difference

What is Congruence and what is Similarity? Some people think the to terms mean the same. However, they are not! Congruent figures are identical. All corresponding angles and sides are equal. Similar figures are not identical. Similarity means that corresponding angles are the same in size and corresponding sides are in proportion. Have a look at the next video for more information about Congruence and Similarity.

Great job! You are now familiar with all the important keywords needed to understand geometry. Continue with your maths revision and check the link below. Here I will explain to you how to construct various polygons (shapes) with your ruler, compass and protractor. I will see you there!!

Lear more Maths!!

Check these links and pass your maths exam!

Angle Properties

Equation of Lines

Volume and Surface Area of Prisms and Cylinders

Functions

Rotational Symmetry

Percentages

Speed Time Graphs

learn how to shade venn diagrams and pass your maths exam

Shading Venn Diagrams