For the perimeter you have to consider the EXTERNAL SHAPE ONLY:
a) the perimeter of half a circle WITHOUT ITS DIAMETER is: π.R - 2R → 3.14x1.5 - 2x1.5 → 1.71 cm
b) the perimeter of the rectangle WITHOUT THE UPPER SIDE is: 2.5+3+2.5 = 8 cm
Hence the perimeter of the figure is 1.71 + 8 = 9.71 cm
2) Area of the figure: Area of half circle is π.R²/2 →3.14 x (1.5)²/2 → Area half circle = 3.5325 cm² Area of rectangle = 2.5 x 3 = 7.5 cm² Total area = 3.5325 + 7.5 = 11.0325 ≈ 11 cm²
