I. Solving simple equations with fractions II. Word problems leading to fractions III. Word problems leading to equations with fractions
I. Concept of simultaneous equations II. Preparing table of values for variables III. Graphical approach to the solution of simultaneous equations
I. Method by substitution II. Method by elimination
I. Concept of similar figures II. Examples of similar figures III. Enlargement and scale factor
Concept of similar figures
Two figures are similar, if they look alike and one is an enlargement or reduction of the other. Mathematically, if two shapes are similar, the ratio of their corresponding sides should be constant.
I. Scale factor (length ratio) II. Area of similar shapes III. Volume of similar shapes IV. Applications of trigonometric ratios to finding distances and lengths
What is scale a scale factor?
When two shapes are similar, the ratio of their corresponding sides are the same. This ratio is called scale factor or length ratio
I. The trigonometric ratios II. Using sine and cosine tables III. Applications of sine and cosine IV. The tangent of an acute angle.
What is trigonometry?
Trigonometry is a word derived from two Greek words, trigonon meaning “triangle” and metron meaning “measure”. Trigonometry helps us find angles and distances. Trigonometry can be used to find missing angle and distance in a triangle as explained in this trigonometry examples.
Efforts and courage are not enough without purpose and direction.
John F. Kennedy, 35th US president
Education’s purpose is to replace an empty mind with an open one.
Malcolm Forbes, entrepreneur
If you don’t sacrifice for what you want, what you want becomes the sacrifice.
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I. Area of basic shapes: Revision (triangles, rectangles, trapeziums, parallelogram and circles) II. Using trigonometry in area problems III. Area of circles and sectors IV. Land measurement
I. Bisection of a segment Bisection of an angle II. Construction of special angles (90°, 45°) III. Construction of special angles (60°, 30°) IV. Construction of shapes V. Copying given angles