Maths 0580 Revision 1

What type of angle shown in the diagram.

Write down the size of one angle in an equilateral triangle.

Triangle ABC and triangle DEF are similar. Find DE .

The diagram shows a right-angled triangle. Use trigonometry to calculate the value of x .

 $T\ =\ a^2+4b$  
Find the value of  $T$   when  $a=5$  and  $b=3$  

Afiq invests $1800 at a rate of 4.5% per year simple interest. Work out the value of his investment at the end of 4 years.

The expression for the nth term of a sequence is  $5n^2$  . 

Work out the third term in this sequence.

These are the first five terms of a sequence.

 $-4\ \ \ \ \ \ 2\ \ \ \ \ 8\ \ \ \ \ 14\ \ \ \ \ 20$  

Find an expression for the nth term of these sequence.

Calculate $-4-\left(5^2-2\times4\times-3\right)$  

Find the lowest common multiple of 56 and 42.