Slide 2:
Uncle Lim wants to put a fence around his square garden .
One of its side measures 20 metres. What is the distance around the garden?
Slide 3:
20 metres 20 metres 20 metres 20 metres Square has four equal sides therefore the remaining 3 sides also measures 20 metres each.
Slide 4:
20 metres 20 metres 20 metres 20 metres Distance around the garden is 80 metres. 20 + 20 + 20 20 + 80 m = The distance around a figure is also called PERIMETER
Slide 5:
Angela bought a square handkerchief and wants to sew lace around it. The length of one side is 30 centimetres. How many centimetres of lace needed to cover the handkerchief, if she needs additional 2 centimetres in each edge?
Slide 6:
30 centimetres 30 centimetres
Slide 7:
30 cm + 30 + 30 30 + 120 cm = 30 30 cm 30 cm 30 cm 8 + = 120 128 cm + 2 + 2 2 + 8 cm = 2 Measurement around the handkerchief is 120 cm. Measurement of all edges is 8 cm. The perimeter of the handkerchief is 128 cm. 2 cm 2 cm 2 cm 2 cm
Slide 8:
5 metres
Answer: 24 metres :
Answer: 24 metres
Slide 10:
8 centimetres
Answer: 32 centimetres :
Answer: 32 centimetres
Slide 12:
18 centimetres
Slide 13:
Answer : 72 centimetres