Question
PSLE
In the figure, the square DEFG is made up of two parts, H and J. The part, H, is formed by a semicircle and the line DE. The perimeter of H is 40 cm and the perimeter of the shaded part, J, is 68 cm.
  1. Find the perimeter of the square DEFG.
  2. Find the area of the shaded part J. (Take π =227)
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
In the figure, the square DEFG is made up of two parts, H and J. The part, H, is formed by a semicircle and the line DE. The perimeter of H is 40 cm and the perimeter of the shaded part, J, is 68 cm.
  1. Find the perimeter of the square DEFG.
  2. Find the area of the shaded part J. (Take π =227)