3.

The area of a rectangle is 150 cm^{2}. If one side is 50 cm, what is the length of the other side? 

[ ] 
3 cm 
[ ] 
3 cm^{2} 
[ ] 
3 mm 
[ ] 
3 mm^{2} 


4.

What is the surface area of a cube of side length 10 mm? 

[ ] 
600 cm^{2} 
[ ] 
60 mm^{2} 
[ ] 
600 mm^{2} 
[ ] 
60 cm^{2} 


5.

If you fold a square in half along an axis of symmetry parallel to one of its sides, the area will halve. If you fold the resulting shape in half again along an axis of symmetry parallel to one of its sides, what will happen to its area? 

[ ] 
It will be the same as the original area 
[ ] 
It will be an eighth of the original area 
[ ] 
It will be a half of the original area 
[ ] 
It will be a quarter of the original area 


6.

A designer is making a pattern with right angled isosceles triangles. The sides that form the right angle in the right angled isosceles triangles are all of side length 6 cm. The designer has a selection of different coloured right angled isosceles triangles which he wishes to stick onto a square whose side length is 72 cm. How many of these coloured triangles will fit onto the square, without overlapping? 

[ ] 
144 
[ ] 
432 
[ ] 
36 
[ ] 
288 


7.

The area of a floor is 25 m^{2}. The floor is to be tiled with tiles whose area is 0.25 m^{2}. How many tiles will be required? 

[ ] 
500 
[ ] 
250 
[ ] 
100 
[ ] 
200 


8.

The circumference of a circle of radius 7 cm is 44 cm. If the circle is cut in half, what is the length of the perimeter of one of the half circles? 

[ ] 
36 cm 
[ ] 
22 cm 
[ ] 
14 cm 
[ ] 
44 cm 


9.

If the radius of a circle doubles, what will happen to the circumference? 

[ ] 
It will double 
[ ] 
Nothing 
[ ] 
It will halve 
[ ] 
There isn't enough information to answer the question 


10.

If the radius of a circle doubles, what will happen to the area? 

[ ] 
There isn't enough information to answer the question 
[ ] 
It will quadruple 
[ ] 
It will double 
[ ] 
It will treble 

