Question
PSLE
In the figure, the square EFGH is made up of two parts, J and K. The part, J, is formed by a semicircle and the line EF. The perimeter of J is 24 m and the perimeter of the shaded part, K, is 80 m.
  1. Find the perimeter of the square EFGH.
  2. Find the area of the shaded part K. (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 EFGH is made up of two parts, J and K. The part, J, is formed by a semicircle and the line EF. The perimeter of J is 24 m and the perimeter of the shaded part, K, is 80 m.
  1. Find the perimeter of the square EFGH.
  2. Find the area of the shaded part K. (Take π =227)