Answer:
Total = 30.75cm squared
Step-by-step explanation:
Area of trapezium = (A+b)h divided by 2 = 15cm squared
area of triangle 1 = 1/2 x b x h = 3 cm squared
Area of triangle 2 = 2.25 cm squared
Area of trapezium at the bottom = 10.5 cm squared
Total = 30.75cm squared
Hope it helped