Question
PSLE
In the figure, the square HJKL is made up of two parts, M and N. The part, M, is formed by a semicircle and the line HJ. The perimeter of M is 50 cm and the perimeter of the shaded part, N, is 78 cm.
  1. Find the perimeter of the square HJKL.
  2. Find the area of the shaded part N. (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 HJKL is made up of two parts, M and N. The part, M, is formed by a semicircle and the line HJ. The perimeter of M is 50 cm and the perimeter of the shaded part, N, is 78 cm.
  1. Find the perimeter of the square HJKL.
  2. Find the area of the shaded part N. (Take π =227)