Category Archives: Trigonometry

This grade 8 worksheet begins with the basics of Pythagoras.   It focuses on writing down the correct Pythagoras formula, substituting correctly into the formula, finding the longest side. It then moves on to finding any side of a right-angled triangle. Finally students are asked to prove that a triangle is right-angled by using the […]

This is really easy! If you have the x and y coordinates: For example: (3; 4) Type in 3  4    Your calculator screen will then look like this: r is your hypotenuse – which is 5 and your angle made with between the y-axis and the hypotenuse is 53o  What if you have the angle and […]

To prove the CAST Diagram On your SHARP EL535 calculator press . Then type in . For X_Start: type in 90 and . For X_Step: type in 15 and . Look at the answers between -90 and 0 – are they all positive or all negative? They are all negative: therefore sin is negative between […]

This grade 10 mathematics worksheet contains revision for term 3 CAPS curriculum for South Africa. The worksheet includes questions on Euclidean geometry, analytical geometry, financial maths including simple and compound interest, exchange rates and hire purchase questions, statistics and 2D trigonometry.   Download here: Worksheet 21: Term 3 Revision Worksheet 21 Memorandum: Term 3 Revision

This CAPS worksheet tests the skills that students should have by the end of term 1. These skills and knowledge include number theory, surds, simplifying expressions, factorising, algebraic fractions, exponents, patterns, solving for x in equations as well as simultaneous equations, and trigonometry. Download here: Worksheet 17: Term 1 Revision Worksheet 17 Memorandum: Term 1 […]

This grade 12 CAPS mathematics worksheet tests maths skills learnt in term 2: 2D and 3D trigonometry. Questions start off with some theory before progressing to applying theory learnt to 2D and 3D representations of real life. Download here: Worksheet 7: 2D and 3D trigonometry Worksheet 7 Memorandum: 2D and 3D trigonometry

This grade 10 maths worksheet focuses on the application of 2D trigonometry concepts learnt in term 2 to solve two dimensional application questions. There is a fully worked memorandum as well. Download here: Worksheet 15: 2D trigonometry Worksheet 15 Memorandum: 2D trigonometry

The grade 11 mathematics trigonometry worksheet tests the sine, cosine and area rules learnt and determines whether students can apply it to two-dimensional (2D) questions. The questions are based on the South African Caps syllabus and there is a fully worked out memorandum. Download here: Worksheet 8: Trigonometry Worksheet 8 Memorandum: Trigonometry

This worksheet tests all the skills learned from term 1 grade 12 are tested in this worksheet. This includes patterns, sequences and series – quadratic, arithmetic, geometric, formula, sum, sigma notation and sum to infinity; functions – theory, domains and inverses; financial mathematics – compound and simple decrease, present and future value annuities, and effective […]

This worksheet looks at the three different trigonometric graphs – sin, cos and tan, and the translations and changes that occur in these graphs. The worksheet tests drawing graphs, identifying graphs, giving the amplitude and period of the graphs. It also does in-depth mixed questions about the different trigonometric functions that mirror exam type questions. […]