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A table cloth of the same size as the tabletop is provided for a round table of 2 meters in length, and lace is embroidered on the outer edge of the table cloth. How long is the lace? What is the area of the table cloth?
Lace length
3.14 × 2 = 6.28 (m)
Tablecloth area
3.14 × (2 △ 2) &# 178; = 3.14 (M2)
A rectangular tablecloth is 3 / 2 meters wide and 3 / 5 meters in width to length. Lace should be set around it. How long is the lace?
3 / 2 + 3 / 5 = 21 / 10m
(21 / 10 + 3 / 2) × 2 = 9.2m
A rectangular tablecloth is nine fifths of a meter long and three fifths of a meter wide. What's the area of this tablecloth?
The area is length × width
9 / 5 * 3 / 5 = 27 / 25 m2
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- 14. There is a rectangular conference table, which is 6 meters long and 3 meters wide. The area of a tablecloth is twice the area of the tabletop, If the length of each side is the same, what is the length and width of the tablecloth? (accurate to 0.1M)
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