Xiaoyan's mother wants to sew a lid (bottomless) on the washing machine. The laundry captain is 58.5 cm long, 42 cm wide and 80 cm high. Xiaoyan's mother needs at least.
(58.5+42)×2×80+58.5×42,
=20 1×80+2457,
= 16080+2457,
= 18537 (square centimeter),
18537 cm2 = 1.8537 m2;
A: Xiaoyan's mother needs at least 1.8537 square meters of cloth.