Post on 25-Jun-2020
Perimeter of a rectangle
1 Workouttheperimeterofeachrectangle.
a) 1cm
1cm
cm+ cm+ cm+ cm= cm
b)1cm
1cm
cm+ cm+ cm+ cm= cm
c)
cm+ cm+ cm+ cm= cm
2 Workouttheperimeteroftherectangles.
a) b)
c) d)
©WhiteRoseMaths2019
1cm
1cm
2km
500m
4cm
9cm
7cm
7cm
4cm 4cm
12cm
3cm
4 Eachlollystickis8cmlong.
Findtheperimeteroftheshape.
5 Eachoftheserectangleshasaperimeterof24cm.
Workoutthemissinglengthsandlabelthediagrams.
a) c)
b)
Whatdoyounotice?
Findanyotherrectanglesthathavethesameperimeter.
3 Tommyisworkingouttheperimeterofsomerectangles.
8 cm + 5 cm = 13 cm 13 cm × 2 = 26 cm
UseTommy’smethodtofindtheperimeterof
theserectangles.
a)
cm+ cm= cm
cm×2= cm
b)
cm+ cm= cm
cm×2= cm
©WhiteRoseMaths2019
8cm
5cm
5cm
4cm
10cm
5cm
10cm
cm
9cm
cm
5cm
cm