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60 (5+1)=10 is the width.

10*5=50 is long.

Area 50 * 10 = 500

Of course, you can also set the unknown.

The length and width are 6x x

Rule. 2*（6x+x）=120

Solution x = 10

If the width is x, the length is 5xThere is (x 5x) *2 120cmSolve x....And then it came out,

I'm in sixth grade.

Isn't the sixth grade exam over?

Let the width be x, then the length is equal to 2 (x+5x) = 120, and the process is 120 2 6 = 10, so the width is 10, then the length is 50, and the area is naturally equal to 10x50 = 500.

120 2=60 is one long and one wide.

The ratio of length to width is known to be 5:1

So the length is 60 (5 1) 5 50 cm, and the width is 60 (5 1) 1= 10 cm

The area is 50 10=500 square centimeters.

Length: 120 times 5/6 = 100cm 100 divided by 2 = 50cm

Width: 120 times 1/6 = 20cm 20 divided by 2 = 10cm

50 times 10 = 500 square centimeters

s parallelogram abcd=ad ae=cd af cd=ad ae af=8 3 5=

bc+cd=30÷2

bc×ae=cd×af

i.e. bc+cd=15

4bc=6cd

The solution yields bc=9 and cd=6

s parallelogram abcd=9 4=36

The first question is to use the area to do ae*ad=af*cd ae=3,ad=8,af=5 so cd=24 5

The second question is a system of binary equations Let bc=x, cd=y, we can get equation 1: 2(x+y)=30 equation 2 4x=6y, and we can solve y=6 so the area is 36.

The angle b is equal to the angle d, and the angle is a right angle, so ade afd is similar.

20 divided by 4 equals 5, 5 times 5 times 20 equals 500, and the answer is 500 cubic centimeters.

5 5 20 = 500 cubic centimeters = 5 cubic decimeters.

20 4 is equal to 5 centimeters of the side length of the low surface, 5 times 5 is equal to 25 square centimeters of the low area, 25 times 20 is equal to the volume of 500 cubic centimeters, and finally the volume of 500 cubic centimeters is replaced by cubic decimeters.

Five-eighths (4-1) Five-twenty-four.