what is the Area of square , side × side , l ×b×2, what is the area of rectangle , L+B+L+B, L×B, what is perimeter of square, 4 ×side, s÷s, what is perimeter of rectangle , 4+ l+b, 2(l+b).

maths

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？