What is the area of the following polygon? Explain your process for how you arrived at the final area. Show your work.

Answer: 400
Step-by-step explanation: first you have to know the triangle area, which is 20 times 10 divided into 2, then you have to know the square area which is 20 times 15 and finally you will put together the areas, which is 400
Answer:
Step-by-step explanation:
Answer: 400
Step-by-step explanation: first you have to know the triangle area, which is 20 times 10 divided into 2, then you have to know the square area which is 20 times 15 and finally you will put together the areas, which is 400