[Haichuan uses his brain] Are elementary school questions so difficult now?
Thread Content
It is known that the side length of the small square is m and the side length of the large square is n. Use the letters m and n to express the area of the shaded part.
There is another way to ask this question: It is known that the area of the shaded part is 3, find the area of the small square
You can find it by subtracting the areas of three triangles from the sum of the areas of two squares.
The final area is 1/2 Xm2
It should be said that the level is getting higher and higher, and the quality is getting higher and higher.
Haha, I am retired. If someone asks about academic qualifications, I'm afraid it's not even the fourth grade of elementary school: (Society is progressing, good!
It seems impossible to calculate directly. Since it is a primary school question, it is a problem of addition and subtraction. It is calculated to be 1/2m2. My brain was so short-circuited that I even forgot how to calculate the area of a triangle. . . .