Answer:
390 cm squared
Step-by-step explanation:
you have to do the area of the rectangle and the triangle separately.
Rectangle: length= 20cm width= 15cm Area= length x width= 20 x 15= 300
Triangle: base= 15cm height= 12cm Area= 1/2 x base x height= 1/2 x 15 x 12=90
Total Area: rectangle + triangle= total area 300 + 90= 390 cm squared
