anju wants to fix a coloured ribbon around a painting which is 25 cm long and 18cm wide. if she has 150 cm ribbon. how much more ribbon will be needed to fix around the painting 3 times?
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5
25x18= 450
450x3=1350
1350/150 =9
so he needs 9ribbons
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2
Answer:
Perimeter of the rectangular painting=2(L+B)
2×(25+18)cm =2×43cm = 86cm
Total perimeter of the rectangular painting if it was fixed with ribbon 3 times =3×86 cm = 258 cm
Length of ribbon Anju had= 150 cm
Therefore, the length of ribbon required to fix the painting 3times = 258 cm - 150 cm = 108 cm.
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