Triangle: 0.6*2+ 1*2=3.2 (square centimeter)

Trapezoid: (1+1+2.3 * 2+1* 2) * 3/2 =14.7 (square centimeter)

Trapezoid 2: (2.3 * 2+1* 2+1* 2+3 * 2) * 3/2 = 21.9 (square centimeter)

Rectangle: 2*9= 18 (square centimeter)

Area = 3.3+14.7+21.9+18 = 57.9 (square centimeter)

As for whether the figures are accurate or not, I am a mantra, and the formula is absolutely correct.