A certain type of washing machine is 90cm high, 55cm long at the bottom and 40cm wide. How much cloth does it need to make a cloth cover for the washing machine? (using recursive equation calculation) urgent!

A certain type of washing machine is 90cm high, 55cm long at the bottom and 40cm wide. How much cloth does it need to make a cloth cover for the washing machine? (using recursive equation calculation) urgent!

90×55×2+90×40×2+55×40
=9900+7200+2200
=19300 square centimeters
=193 square decimeters
=1.93 square meters
A: it needs 1.93 square meters of cloth
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Mother made a cloth cover for the new washing machine. The washing machine is 7 decimeters long, 6 decimeters wide and 11 decimeters high
(1) How many square decimeters of cloth does this cloth cover share?
(2) Mom sewed lace on the seam and bottom of each side. How many meters of lace do you share?

7×6+2×（11×7+11×6）
=42+2×143
=328 square decimeters
It takes 328 square decimeters to make this cloth cover
There are 12 edges
4 × (7 + 6 + 11) = 96 decimeters = 9.6 meters
Shared lace 9.6m
If you don't understand this problem, you can ask,

The bottom of a parallelogram is 1.8 meters, its height is 0.4 meters, and its area is how many square meters

0.72.