1.
Here are some expressions. 1 2
πc
ac
2
2b
abc
2ab
ab c
a(b + c)
2
πa
The letters a, b and c represent lengths. 1
π, 2 and 2 are numbers which have no dimensions. Three of the expressions could represent areas. Tick ( ) the boxes underneath the three expressions which could represent areas.
(Total 3 marks)
2.
This table shows some expressions. The letters a, b, c, and d represent lengths. π and 4 are numbers that have no dimensions. Three of the expressions could represent volumes. Tick the boxes underneath the three expressions which could represent volumes.
abc d
3
4πa
2
4a
3
πa + bd
(a + b)cd
2
2
4ad 2
π(c + d )
(Total 3 marks)
3.
The table shows some expressions. a, b, c and d represent lengths.
π and 3 are numbers which have no dimensions. 2
3a
πab3 3d
πbc
ac + bd
π(a + b)
3(c + d)
3
3πbc
2
Tick ( ) the boxes underneath the three expressions which could represent volumes. (Total 3 marks)
The Winston Churchill School
1
4.
Here are some expressions. (a + b)c
ac + b
2abc
2
2
πa + πb
2πc
The letters a, b, and c represent lengths. π and 2 are numbers that have no dimension. Two of the expressions could represent areas. Tick the boxes ( ) underneath these two expressions. (Total 2 marks)
The Winston Churchill School
2