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प्रश्न
The perimeter of the figure ABCDEFGHIJ is ______.
विकल्प
60 cm
30 cm
40 cm
50 cm
उत्तर
The perimeter of the figure ABCDEFGHIJ is 60 cm.
Explanation:
Perimeter = Sum of all sides
So, AJ + JI + IH + HG + GF + FE + ED + CD + BC + AB
= (AJ + IH + GF + BC) + 3 + 5 + 2 + 20 + 4 + 6
= DE + 40 ......[∵ AJ + IH + GF + BC = DE]
= 20 + 40
= 60 cm
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