Answer:
150
Step-by-step explanation:
You find the area of an unsual shape by cutting into different proper shapes, if that makes sense. Then you find the area of each shape, and you add those areas.
Square:
Area= square of the side = 10^2 = 100
Triangle:
(Base x height)/2 = 10x10=100/2 = 50
(height of triangle = Side length of square)
Complete shape: 100+50=150
Hope that answers your question
