用英语.1.A rectangle(矩形）of 4cm long has the same area(面积)as a s

用英语.
1.A rectangle(矩形）of 4cm long has the same area(面积)as a square(正方形)of side(边)8cm.Find the perimeter(周长)of the rectangle._____
2.45 rows of square (砖块)are use for a playground.In each row,there are 32bricks,If each area of a rick is 0.8m平方,find the area of the playground.__________