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How many cm ribbons do you need to tie a 30cm long, 12cm wide and 10cm high gift box? (knot length 15cm)
one hundred and thirty-nine
Tie a gift box with a ribbon. If the ribbon at the joint is 30cm long, calculate the length of the ribbon
15x212x2 + 8x4 + 30 = 116Cm, thank you!
"Mingming is going to put the plane model given to Xiaogang into a cuboid box. The length, width and height of the box are 15cm, 8cm and 8cm respectively
' Mingming is going to pack the plane model given to Xiaogang into a cuboid box. The length, width and height of the box are 15cm, 8cm and 10cm respectively. After loading, tie the box with color tape. The length of the color tape at the joint is 18cm. How many cm of color tape do you need
86
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