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What are the perimeter application problems of rectangle and square in mathematics in grade three?
1 The basketball court is a rectangle. Its length is 30m and its width is 12m. Xiaoming runs around the basketball court. How many meters must he run?

A rectangular lawn is 18m long and twice as wide. What is the circumference of this lawn?

Make a square with two rectangles 20 cm long and 10 cm wide. What is the circumference of this square?

Cut out the largest square on a rectangular piece of paper with a length of 24 cm and a width of 16 cm. What's its circumference? What is the circumference of the remaining paper?

A line can just surround a square with a side length of 10 cm. What is the width of a rectangle with a length of 12 cm?

6 A rectangular vegetable field, 9 meters long and 6 meters wide. Fence it up. How long is the fence? If one side is against the wall, how many meters should the fence be at least?

( 1) 84m

(2)54 meters

(3) Classification discussion:

[1] 80cm

[2] 100 cm

(Write down two answers)

(4) The circumference is 64 cm.

The remaining 80 centimeters

(5)8 cm

(6)30 meters

2 1 m or 24 m