Mathematics problems in Volume 2 of grade 4 Three numbers are represented by △, zero and □, and △ +△=□+□+□,□+□+□=○+○+○+○,△+□+○+○=400. △=? □=? ○=? Please tell me how to do it, thank you!

Mathematics problems in Volume 2 of grade 4 Three numbers are represented by △, zero and □, and △ +△=□+□+□,□+□+□=○+○+○+○,△+□+○+○=400. △=? □=? ○=? Please tell me how to do it, thank you!

Triangles are 3 / 2 rectangles
A rectangle is 4 / 3 of a circle
So a triangle is two circles
So triangle plus rectangle plus 2 circles equals 2 circles plus 4 / 3 circles plus 2 circles equals 400
So the circle is 75
The rectangle is 100
The triangle is 150

0.56 divided by 0.7 = () divided by 7 = () 0.56 divided by 0.07 = () divided by 7 = () 8.64 divided by 3.6 = () divided by 36 = () 8.64 divided by 0.36 = () divided by 36 = ()

（1）0.8 、0.08 （2）8、0.08 （3）2.4、0.24