1.	PLENARY IDEAS: PERIMETER AND AREA	LEVELS 4 – 5
	A calculator should not be used for these questions
1.	The diagram shows a rectangle, drawn on a square grid.

(a)	Draw a square that has the same area as the rectangle.

1 mark
 
(b)	Draw a square that has the same perimeter as the rectangle.

1 mark

2.	The grids in this question are centimetre square grids.
	For each shape on the left, draw a rectangle that has the same area.
	The ﬁrst one is done for you.

2 marks

3.	The diagram shows some shapes on a 10 by 6 square grid.

(a)	Which two shapes have the same area as shape A?
  ...............................
1 mark
 
(b)	Which two shapes have the same perimeter as shape A?
  ...............................
1 mark
 
(c)	How many of shape C would you need to cover a 10 by 6 square grid?
  ...............................
1 mark

4.	Here is a shaded shape on a centimetre square grid.

(a)	What is the area of the shaded shape?
 .................... cm2
1 mark
 
(b)	Now draw a rectangle that has the same area as the shaded shape.

1 mark

5.	Liam has two rectangular tiles like this.

	He makes this L shape.

	What is the perimeter of Liam’s L shape?

cm	
1 mark

6.	What is the area of this shape?

2 marks

7.	(a)	Tick () any rectangles below that have an area of 12cm2

1 mark
 
(b)	A square has an area of 100cm2
	What is its perimeter?
	Show your working.

  ......................... cm
2 marks

8.	(a)	I have a square piece of paper.
	The diagram shows information about this square labelled A.

	I fold square A in half to make rectangle B.

	Then I fold rectangle B in half to make square C.

	Complete the table below to show the area and perimeter of each shape.
Area	Perimeter	
	Square A	cm2	cm	
	Rectangle B	cm2	cm	
	Square C	cm2	cm	
3 marks

(b)	I start again with square A.

	Then I fold it in half to make triangle D.

	What is the area of triangle D?
  ........................ cm2
1 mark

(c)	One of the statements below is true for the perimeter of triangle D.
	Tick () the correct one.

	The perimeter is less than 24 cm.	
	The perimeter is 24 cm.	
	The perimeter is greater than 24 cm.	
	Explain your answer.

1 mark