This articles explores calculations and mathematics involving simple interests. The explore how to calculate simple interest on loans, Interest rates, Time periods and Repayments. Prior knowledge of working with percentages is essential. What is...
In this chapter we shall be exploring the cosine rule. In trigonometry we can use the cosine rule to find the missing sides and angles in a triangle. You must have some basic knowledge...
This triangular based prism shown above has a triangle base. The area of this triangular base s ½ bxh and the perimeter of this triangular base is s1, s2, s3. Just add all the...
Here we have a circular based prism; It’s as though the prism has been extruded from the circle below the prism and that’s the general idea behind the prism surface area. The area of...
The following image shows a square based pyramid with labels. Deriving the Surface Area (SA) Let’s try to derive/prove the surface area pyramid above. It’s actually very simple. At the bottom of this pyramid...
In this chapter we shall be looking at multiplying decimal numbers together. This should be straight forward and simple. Work out 0.6 x 0.8 To work out this easily we’re going to make the...
In this section we’re going to be exploring Pythagoras’s theorem. You will understand how to use Pythagoras’s theorem and be able to find the distance between 2 points in a coordinate grid. Pythagoras was...
In this section we shall be looking at prime factorisation. You will be able to understand highest common factors and how to use factor trees to find the highest common factors HCF. What is...
In this section we shall be exploring rounding off decimals. We shall look at rounding decimals off to whole numbers, rounding decimals to certain decimal places and making decisions whether to round up or...
