1
Question
Find the perimeter of the figure ABCDEFGHIJ.
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Solution
Perimeter of the given figure = AB + BC + CD + DE + EF + FG + GH + IH + IJ + AJ
[0.5 marks]
From the figure, AJ + IH + GF + BC = DE = 20 cm
[1 mark]
= DE + 3 cm + 5 cm + 2 cm + 20 cm + 4 cm + 6 cm
= 20 cm + 40 cm
= 60 cm
[1 mark]
Perimeter of the given figure = AB + BC + CD + DE + EF + FG + GH + IH + IJ + AJ
[0.5 marks]
From the figure, AJ + IH + GF + BC = DE = 20 cm
[1 mark]
= DE + 3 cm + 5 cm + 2 cm + 20 cm + 4 cm + 6 cm
= 20 cm + 40 cm
= 60 cm
[1 mark]
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